Liquid crystalline compound, liquid crystal composition and liquid crystal display element

ABSTRACT

A novel liquid crystalline compound having a high elastic constant ratio (K 33  /K 11 ) and an improved solubility thereof in other liquid crystal materials, at low temperatures, and a liquid crystal composition containing the same are provided. The liquid crystalline compound is expressed by the formula (1): ##STR1## wherein Q represents CF 3 , CF 2  H or CFH 2  ; A 1 , A 2  and A 3  each independently represent trans-1,4-cyclohexylene group, 1,4-phenylene group, wherein one or more hydrogen atoms on its six-membered ring may be replaced by F, Cl or CN, pyridine-2,5-diyl group or 1,3-pyrimidine-2,5-diyl; ring B represents 1,4-phenylene group or trans-1,4-cyclohexylene group; Z 1 , Z 2  and Z 3  each independently represent covalent bond, --C═C--, --C.tbd.C--, --OCO--, --COO--, --CH 2  O--, --OCH 2  --, --(CH 2 ) 2  -- or --(CH 2 ) 4  --; l and m each independently represent an integer of 0 to 5; o and p each independently represent 0 or 1; L 1  and L 2  each independently represent H, F or Cl; L 3  represents halogen atom, CN, CF 3 , CF 2  H, CFH 2 , OCF 3 , OCF 2  H, H or an alkyl group of 1 to 10 carbon atoms or an alkenyl group of 2 to 10 carbon atoms wherein optional methylene groups (--CH 2  --) in the alkyl group or the alkenyl group each independently may be replaced by --O--, --S--, --CO--, --OCO-- or --COO--, but two or more methylene groups should not be continuedly replaced.

This is a continuation application of Ser. No. 08/429,847 filed Apr. 27, 1995, now U.S. Pat. No. 5,653,911.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a liquid crystalline compound and a liquid crystal composition. More particularly, it relates to a novel liquid crystalline compound containing a fluorine-substituted alkenyl group, a liquid crystal composition containing the same and a liquid crystal display element constituted by using the liquid crystal composition.

2. Description of the Related Art

Display elements using liquid crystalline compounds have been broadly utilized for watches, electronic calculators, word processors, etc. These display elements utilize optical anisotropy, dielectric anisotropy, etc.

Liquid crystal phases include nematic liquid crystal phase, smectic liquid crystal phase and cholesteric liquid crystal phase, but display elements utilizing nematic liquid crystal phase have been most broadly utilized. Further, the display modes include dynamic scattering (DS) mode, deformation of aligned phases (DAP) mode, guest-host (GH) mode, twisted nematic (TN) mode, supertwisted nematic (STN) mode, thin film transistor (TFT) mode, etc., but current mainstreams thereof are three modes of TN, STN and TFT. Among these, STN mode has been broadly used since it is collectively superior in the aspects of many characteristics such as display capacity, response speed, viewing angle, graduation property, etc., for liquid crystal display of simple matrix mode drive.

Liquid crystalline compounds used for thsese display modes should exhibit liquid crystal phases within a broad temperature range around room temperature, have a sufficient stability under conditions where the display elements are used and also have sufficient characteristics for driving the display elements, but at present, no single liquid crystalline compound satisfying these conditions has been found. Thus, it is the practical status that several kinds to several tens kinds of liquid crystalline compounds and if necessary, non-liquid crystalline compounds, have been blended to prepare liquid crystalline compounds furnished with required characteristics. These liquid crystal compositions are required to be stable to moisture, light, heat and air which are usually present under conditions where the display elements are used, and also stable to electric field or electromagnetic irradiation and moreover chemically stable to the blended compounds. Further, it is required for the liquid crystal compositions that values of various physical properties such as optical anisotropy value (Δn), dielectric anisotropy value (Δε), etc. are suitable, depending upon display mode and the shape of the display elements. Further, it is important for the respective components in the liquid crystal compositions to have good solubilities in each other.

Further, for the liquid crystalline compounds used for STN type display mode, it has been regarded as advantageous that the value of elastic constant ratio K₃₃ /K₁₁ (K₃₃ : bend elastic constant and K₁₁ : splay elastic constant) is large (see M. Akatuka et al: Proc. of Japan Display, 86 (1989), 388). When the elastic constant ratio K₃₃ /K₁₁ is made higher, change in the transmittance in the vicinity of threhsold voltage becomes steep so that a display element of high contrast is obtained. As compounds having a higher elastic constant ratio of K₃₃ /K₁₁, those having an alkenyl group on a side chain have been generally known (for example, see Japanese patent application laid-open No. Sho 61-83136, Japanese patent application laid-open No. Hei 1-151531, Japanese patent application laid-open No. Hei 1-157925, Japanese patent application No. Hei 2-104582, Japanese patent application laid-open No. Hei 3-223223, Japanese patent publication No. Hei 3-3643, Japanese patent application laid-open No. Hei 4-226929, Japanese patent application laid-open No. Hei 4-230352, Japanese patent publication No. Hei 4-30382, etc.). However, these compounds have a problem of being inferior in the solubility in liquid crystal compositions at low temperatures. Further, as compounds having a similar structure to that of the compound of the present invention, compounds disclosed in U.S. Pat. No. 5,183,587 have been known. However, these compounds have a problem of being far inferior in the heat stability. Thus, development of a liquid crystalline compound having a high elastic constant K₃₃ /K₁₁, a superior heat stability and an improved solubility at low temperatures has been long waited for.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a liquid crystalline compound having overcome the draw-backs of the above prior art, and particularly having a high elastic constant ratio K₃₃ /K₁₁ and an improved solubility at low temperatures, a liquid crystal composition containing the same and a liquid crystal display element constructed by using the liquid crystal composition.

This object can be achieved by the liquid crystalline compounds of the present invention, which are expressed by the formula (1) ##STR2## wherein Q represents CF₃, CF₂ H or CFH₂ ; A₁, A₂ and A₃ each independently represent trans-1,4-cyclohexylene group, 1,4-phenylene group wherein one or more hydrogen atoms on its six-membered ring may be replaced by F, Cl or CN, pyridine-2,5-diyl group or 1,3-pyrimidine-2,5-diyl; ring B represents 1,4-phenylene group or trans-1,4-cyclohexylene group Z₁, Z₂ and Z₃ each independently represent covalent bond, --CH═CH--, --C.tbd.C--, --OCO--, --COO--, --CH₂ O--, --OCH₂ --, --(CH₂)₂ -- or --(CH₂)₄ --; l and m each independently represent an integer of 0 to 5; o and p each independently represent 0 or 1; L₁ and L₂ each independently represent H, F or Cl; and L₃ represents a halogen atom, CN, CF₃, CF₂ H, CFH₂, OCF₃, OCF₂ H, H, an alkyl group of 1 to 10 carbon atoms or an alkenyl group of 2 to 10 carbon atoms (wherein optional methylene groups (--CH₂ --) in the alkyl group or the alkenyl group each independently may be replaced by --O--, --S--, --CO--, --OCO-- or --COO--, but two or more methylene groups should not be continuedly replaced.

The liquid crystal composition of the present invention contain at least one of the liquid crystalline compounds of formula (I).

The liquid crystal composition containing as a first component, at least one of the liquid crystalline compounds of formula (I); may also contain as a second component, at least one compound chosen from those expressed by the following formulas (2), (3) or (4): ##STR3## wherein R₁ represents an alkyl group of 1 to 10 carbon atoms; Y represents F, Cl, CF₃, OCF₃, OCF₂ H or an alkyl group of 1 to 10 carbon atoms; L₄, L₅, L₆ and L₇ each independently represent H or F; Z₄ and Z₅ each independently represent --(CH₂)₂ --, --CH═CH-- or covalent bond; ring D represents trans-1,4-cyclohexylene group or 1,4-phenylene group; a represents 1 or 2; and b represents 0 or 1.

The liquid crystal composition containing as a first component, at least one of the liquid crystalline compounds of formula (I), may also containing as a second component, at least one compound chosen from those expressed by the following formulas (5), (6) , (7) , (8) and (9): ##STR4## wherein R₂ represents F, an alkyl group of 1 to 10 carbon atoms or an alkenyl group of 2 to 10 carbon atoms wherein optional methylene groups (--CH₂ --) may be replaced by oxygen atom (--O--), but two or more methylene groups should not be continuedly replaced by oxygen atom; Z₆ represents --(CH₂)₂ --, --COO-- or covalent bond; L₈ and L₉ each independently represent H or F; E represents trans-1,4-cyclohexylene group, 1,4-phenylene group or 1,3-dioxane-2,5-diyl group; ring G represents trans-1,4-cyclohexylene group or 1,4-phenylene group; and c and d each independently represent 0 or 1, ##STR5## wherein R₃ represents an alkyl group of 1 to 10 carbon atoms; L₁₀ represents H or F; and e represents 0 or 1, ##STR6## wherein R₄ represents an alkyl group of 1 to 10 carbon atoms; I represents trans-1,4-cyclohexylene group or 1,4-phenylene group; L₁₁ represents H or F; Z₇ represents --COO-- or covalent bond; Z₈ represents --COO-- or --C.tbd.C--; and f and g each independently represent 0 or 1,

    R.sub.5 --J--Z.sub.9 --K--R.sub.6                          ( 8)

wherein R₅ and R₆ each independently represent an alkyl group, an alkoxy group or an alkoxymethyl group of each 1 to 10 carbon atoms; J represents trans-1,4-cyclohexylene group, 1,4-phenylene group or 1,3-pyrimidine-2,5-diyl group; K represents trans-1,4-cyclohexylene group or 1,4-phenylene group; and Z₉ represents --C.tbd.C--, --COO--, --(CH₂)₂ -- or covalent bond, ##STR7## wherein R₇ represents an alkyl group or an alkoxy group of each 1 to 10 carbon atoms; R₈ represents an alkyl group of 1 to 10 carbon atoms; wherein optional methylene groups (--CH₂ --) may be replaced by oxygen atom (--O--), but two or more methylene groups should not be continuedly replaced by oxygen atom; M represents trans-1,4-cyclohexylene group or 1,3-pyrimidine-2,5-diyl group; rings N and P each independently represent trans-1,4-cyclohexylene group or 1,4-phenylene group; Z₁₀ represents --COO--, --(CH₂)₂ --, --CH═CH-- or covalent bond; Z₁₁ represents --C.tbd.C--, --COO-- or covalent bond; h represents 0 or 1; and L₁₂ represents H or F.

DETAILED DESCRIPTION OF THE INVENTION

The liquid crystalline compounds expressed by the formula (I) of the present invention are characterized by having a fluoroalkenyl group in their molecules. These liquid crystalline compounds particularly have a high elastic constant ratio K₃₃ /K₁₁ and a good solubility in liquid crystal compositions even at low temperatures. Further, these liquid crystalline compounds have a physically and chemically sufficient stability under conditions where display elements are usually used, and further, can be derived into those having desired physical values by suitably choosing the six-membered ring, substituent or bonding group among the molecule-constituting elements. Thus, when the compounds of the present invention are used as components of liquid crystal compositions, it is possible to provide novel liquid crystal compositions having preferable characteristics.

Hereinafter, when S represents the following group: ##STR8## R₉ represents the following group: ##STR9## Cyc represents trans-1,4-cyclohexylene group; Phe represents 1,4-phenylene group;

Pyd represents pyridine-2,5-diyl group;

Pyr represents 1,3-pyrimidine -2,5-diyl;

One or more hydrogen atoms of the Phe, Pyd and Pyr may be replaced by F, Cl or CN; and

A₁, A₂ and A₃ are chosen from the group consisting Cyc, Phe, Pyd and Pyr, and preferably do not contain two or more Pyds and Pyrs in the molecule,

then the compounds expressed by the formula (1) are classified as follows:

Compounds having two six-membered rings:

    R.sub.9 --A.sub.3 --S                                      (1a)

    R.sub.9 --A.sub.3 --Z.sub.3 --S                            (1b)

Compounds having three six-membered rings:

    R.sub.9 --A.sub.2 --A.sub.3 --S                            (1c)

    R.sub.9 --A.sub.2 --Z.sub.2 --A.sub.3 --S                  (1d)

    R.sub.9 --A.sub.2 --A.sub.3 --Z.sub.3 --S                  (1e)

    R.sub.9 --A.sub.2 --Z.sub.2 --A.sub.3 --Z.sub.3 --S        (1f)

and compounds having four six-membered rings:

    R.sub.9 --A.sub.2 --A.sub.3 --S                            (1g)

    R.sub.9 --A.sub.1 Z.sub.1 --A.sub.2 --A.sub.3 --S          (1h)

    R.sub.9 --A.sub.1 --A.sub.2 --Z.sub.2 ----S                (1i)

    R.sub.9 --A.sub.1 --A.sub.2 --A.sub.3 --Z.sub.3 --S        (1j)

    R.sub.9 --A.sub.1 --Z.sub.1 --A.sub.2 --Z.sub.2 --A.sub.3 --S(1k)

    R.sub.9 --A.sub.1 --A.sub.2 --Z.sub.2 --A.sub.3 --Z.sub.3 --S(1l)

    R.sub.9 --A.sub.1 --Z.sub.1 --A.sub.2 --A.sub.3 --Z.sub.3 --S(1m)

    R.sub.9 --A.sub.1 --Z.sub.1 --A.sub.2 --Z.sub.2 --A.sub.3 --Z.sub.3 --S(1n)

Among these compounds, those expressed by the formulas (1a), (1b), (1c), (1d), (1e), (1g) and (1i) are particularly preferred in the aspect of achieving the object of the present invention.

Compounds expressed by the formula (1a) are further developed to those expressed by the following formulas (1aa) to (1ad):

    R.sub.9 -Cyc-S                                             (1aa)

    R.sub.9 -Phe-S                                             (1ab)

    R.sub.9 -Pyd-S                                             (1ac)

    R.sub.9 -Pyr-S                                             (1ad)

Among these compounds, those expressed by the formulas (1aa) and (1ab) are particularly preferred.

Further, the compounds expressed by the formula (1b) are further developed to those expressed by the following formulas (1ba) to (1bh):

    R.sub.9 --A.sub.3 --CH═CH--S                           (1ba)

    R.sub.9 --A.sub.3 --C═C--S                             (1bb)

    R.sub.9 --A.sub.3 --OCO--S                                 (1bc)

    R.sub.9 --A.sub.3 --COO--S                                 (1bd)

    R.sub.9 --A.sub.3 --CH.sub.2 O--S                          (1be)

    R.sub.9 --A.sub.3 --OCH.sub.2 --S                          (1bf)

    R.sub.9 --A.sub.3 --(CH.sub.2).sub.2 --S                   (1bg)

    R.sub.9 --A.sub.3 --(CH.sub.2).sub.4 --S                   (1bh)

Among these compounds, those expressed by the formulas (1bd) and (1bg) are particularly preferred.

Further, compounds expressed by the formula (1c) are further developed to those expressed by the following formulas (1ca) to (1ch):

    R.sub.9 -Cyc-Cyc-S                                         (1ca)

    R.sub.9 -Cyc-Phe-S                                         (1cb)

    R.sub.9 -Phe-Cyc-S                                         (1cc)

    R.sub.9 -Phe-Phe-S                                         (1cd)

    R.sub.9 -Pyd-Phe-S                                         (1ce)

    R.sub.9 -Pyr-Phe-S                                         (1cf)

    R.sub.9 -Cyc-Pyr-S                                         (1cg)

    R.sub.9 -Phe-Pyr-S                                         (1ch)

Among these compounds, those expressed by the formulas (1ca), (1cb) and (1cf) are particularly preferred.

Compounds expressed by the formula (1d) are further developed to those expressed by the following formulas (1da) to (1dg):

    R.sub.9 -Cyc-Z.sub.2 -Cyc-S                                (1da)

    R.sub.9 -Cyc-Z.sub.2 -Phe-S                                (1db)

    R.sub.9 -Cyc-Z.sub.2 -Pyr-S                                (1dc)

    R.sub.9 -Phe-Z.sub.2 -Phe-S                                (1dd)

    R.sub.9 -Phe-Z.sub.2 -Cyc-S                                (1de)

    R.sub.9 -Phe-Z.sub.2 -Pyr-S                                (1df)

    R.sub.9 -Pyr-Z.sub.2 -Phe-S                                (1dg)

Among these compounds, those expressed by the formulas (1da) and (1db) are particularly preferred.

Compounds expressed by the formula (1e) are further developed to those expressed by the following formulas (1ea) to (1eh):

    R.sub.9 -Cyc-Cyc-Z.sub.3 -S                                (1ea)

    R.sub.9 -Cyc-Phe-Z.sub.3 -S                                (1eb)

    R.sub.9 -Cyc-Pyr-Z.sub.3 -S                                (1ec)

    R.sub.9 -Phe-Phe-Z.sub.3 -S                                (1ed)

    R.sub.9 -Phe-Cyc-Z.sub.3 -S                                (1ee)

    R.sub.9 -Phe-Pyr-Z.sub.3 -S                                (1ef)

    R.sub.9 -Pyr-Phe-Z.sub.3 -S                                (1eg)

    R.sub.9 -Pyr-Cyc-Z.sub.3 -S                                (1eh)

Among these compounds, those expressed by the formulas (1ea) and (1eb) are particularly preferred.

Compounds expressed by the formula (1f) are further developed to those expressed by the following formulas:

    R.sub.9 -Cyc-Z.sub.2 -Cyc-Z.sub.3 -S                       (1fa)

    R.sub.9 -Cyc-Z.sub.2 -Phe-Z.sub.3 -S                       (1fb)

    R.sub.9 -Cyc-Z.sub.2 -Pyr-Z.sub.3 -S                       (1fc)

    R.sub.9 -Phe-Z.sub.2 -Phe-Z.sub.3 -S                       (1fd)

    R.sub.9 -Phe-Z.sub.2 -Cyc-Z.sub.3 -S                       (1fe)

    R.sub.9 -Phe-Z.sub.2 -Pyr-Z.sub.3 -S                       (1ff)

    R.sub.9 -Pyr-Z.sub.2 -Phe-Z.sub.3 -S                       (1fg)

    R.sub.9 -Pyr-Z.sub.2 -Cyc-Z.sub.3 -S                       (1fh)

In all of the above compounds, R₉ represents an alkenyl group of 3 to 13 carbon atoms wherein hydrogen atoms at ω-position are replaced by one or more fluorine atoms, and among the group, particularly preferable groups are as follows:

3-fluoro-1-propenyl, 4-fluoro-1-butenyl, 5-fluoro-1-pentenyl, 6-fluoro-1-hexenyl, 7-fluoro-1-heptenyl, 3,3-difluoro-1-propenyl, 4,4-difluoro-1-butenyl, 5,5-difluoro-1-pentenyl, 6,6-difluoro-1-hexenyl, 7,7-difluoro-1-heptenyl, 3,3,3-trifluoro-1-propenyl, 4,4,4-trifluoro-1-butenyl, 5,5,5-trifluoro-1-pentenyl, 6,6,6-trifluoro-1-hexenyl, 7,7,7-trifluoro-1-heptenyl, 5-fluoro-3-pentenyl, 6-fluoro-3-hexenyl, 7-fluoro-3-heptenyl, 5,5-difluoro-3-pentenyl, 6,6-difluoro-3-hexenyl, 7,7-difluoro-3-heptenyl, 5,5,5-trifluoro-3-penteny, 6,6,6-trifluoro-3-hexenyl and 7,7,7-trifluoro-3-heptenyl.

Further, as to group S, those wherein one or both of L₁ and L₂ are F are preferred, and in the case where L₃ represents an alkyl group wherein optional methylene groups (--CH₂ --) each independently may be replaced by --O--, --S--, --CO--, --OCO-- or --COO--, but two or more methylene groups should not be continuously replaced, those wherein L₁ and L₂ are both H are preferred.

As described above, compounds expressed by the formulas (1aa), (1ab), (1bd), (1bg), (1ca), (1cb), (1cf), (1da), (1db), (1ea) and (1eb) can be said to be particularly preferable examples, and as more preferable compounds among them, those expressed by the following formulas (1-1) to (1-10) can be mentioned: ##STR10##

The liquid crystalline compounds expressed by the formula (1) of the present invention can be prepared according to known processes employing Wittig reaction, for example based upon the process described in Organic Reactions, vol. 14, chapter 3, U.S. Pat. No. 4,676,604, etc., as follows: ##STR11##

Namely, a fluoroalkyltriphenylphosphonium halide is reacted with an aldehyde (11), in the presence of a base such as potassium-t-butoxide (t-BuOK), n-butyllithium (n-BuLi), etc., in a solvent of an ether such as tetrahydrofuran (THF), diethyl ether, etc. This reaction is preferably carried out at -20° to 0° C. in an inert gas current. Next, when the thus obtained compound is reacted with benzenesulfinic acid or p-toluenesulfinic acid, it is possible to prepare the compound (1) of the present invention.

Further, it is also possible that the aldehyde (11) is reacted with (ω-(1,3-dioxan-2-yl)alkyltriphenylphosphonium halide to obtain an intermediate (12), followed by removing the protective group therefrom to obtain an aldehyde (13), reacting this aldehyde (13) with a fluorinating agent such as diethylaminosulfurtrifluoride (DAST) to obtain an intermediate (14), and isomerizing it to obtain an objective compound example (15). ##STR12##

Still further, it is also possible that the aldehyde (13) is reduced with a reducing agent such as sodium boron hydride (SBH), lithium aluminum hydride (LAH), etc. to obtain an alcohol (16), followed by isomerizing the resulting intermediate (17), to obtain the objective compound example (18). ##STR13##

In addition, the above fluoroalkyltriphenylphosphonium halide can be prepared according to the following process: ##STR14##

Namely, it is prepared by reacting the corresponding fluoroalkylhalide with triphenylphosphine in a solvent such as toluene, xylene, etc. The above reaction of the fluoroalkylhalide with triphenylphosphine can also be carried out in the absence of any solvent and in a sealed tube. These reactions are preferably carried out at 60° to 100° C. and further in an inert gas current.

Further, the aldehyde (11) as the starting raw material can be easily derived from the corresponding cyclohexanone, alcohol, carboxylic acid, etc. according to known process.

Next, the compound expressed by the formula (1) wherein the ring B represents a substituted phenylene group and L₃ represents OCF₃ or OCF₂ H can be prepared for example according to the following process: ##STR15##

Namely, it is possible that the compound (19) is obtained according to Wittig reaction, followed by reacting it with boron tribromide to obtain a phenol (20), reacting it in a system of HF/CCl₄ or chlorodifluoromethane/NaOH to obtain the corresponding objective compound example (21) or (22). These compounds can also be obtained by subjecting a trifluoromethoxy or difluoromethoxy derivative of 4-substituted bromobenzene to a known coupling reaction, Wittig's reaction, etc.

The compound expressed by the formula (1) wherein ring B represents a substituted phenylene group and L₃ represents CF₂ H or CFH₂, can be prepared according to the following process: ##STR16##

Namely, it is possible that a compound (23) is obtained according to Wittig reaction, followed by reducing (23) with a reducing agent such as diisobutylaluminum hydride (DIBAL), etc. to obtain an aldehyde (24), followed by reacting the aldehyde (24) with a fluorinating agent such as DAST, etc. to obtain the objective compound exmaple (25). Further, it is also possible that the aldehyde (24) is reduced with a reducing agent such as SBH, etc. to obtain an alcohol (26), followed by fluorinating the hydroxyl group of the alcohol with DAST, etc. to obtain the objective compound example (27).

The compound expressed by the formula (1) wherein ring B represents a substituted phenylene group and L₃ represents CF₃, can be obtained for example by subjecting a trifluoromethyl derivative of a substituted bromobenzene to known coupling reaction, Wittig reaction, etc.

Any of the thus obtained liquid crystalline compounds of the present invention exhibit a high elastic constant ratio (K₃₃ /K₁₁), and further, are easily blended with various liquid crystal materials and have a good solubility at low temperatures; hence they are far superior as the constituting component of nematic liquid crystal compositions, particularly nematic liquid crystal compositions suitable to STN mode display elements.

The liquid crystal compositions provided by the present invention are enough to contain only a first component containing at least one kind of the liquid crystalline compounds expressed by the formula (1), but the first component is preferably mixed with, as a second component, at least one kind of compounds chosen from those expressed by the above formulas (2), (3) and (4) (hereinafter referred to as a second A component) and/or at least one kind of compounds chosen from those expressed by the formulas (5), (6), (7), (8) and (9) (hereinafter referred to as a second B component), and further a known compound can be also mixed as a third component, in order to adjust the threshold voltage, the liquid crystal temperature range, the optical anisotropy, the dielectric anisotropy, viscosity, etc.

Among compounds of the second A component, the following (2-1) to (2-15) are mentioned as preferable examples of compounds included in the formula (2); the following (3-1) to (3-48) are mentioned as preferable examples of compounds included in the formula (3); and the following (4-1) to (4-41) are mentioned as preferable examples of compounds included in the formula (4): ##STR17##

These compounds expressed by the formulas (2) to (4) exhibit positive dielectric anisotropy and are far superior in the heat stability and the chemical stability.

The quantity of these compounds used is in the range of 1 to 99% by weight, preferably 10 to 97% by weight and more preferably 40 to 95% by weight.

Next, among compounds of the second B components, the following (5-1) to (5-27), (6-1) to (6-3) and (7-1) to (7-11) are mentioned as preferable exmaples of compounds included in the formulas (5), (6) and (7), respectively: ##STR18##

These compounds expressed by the formulas (5) to (7) have a positive dielectric anisotropy whose value is large, and are used as the composition component, particularly in order to reduce the threshold voltage. Further, they are used also for adjustment of the viscosity, adjustment of the optical anisotropy, broadening of the liquid crystal phase temperature range, etc., and also for improvement of the steepness.

Further, among the compounds of the second B component, (8-1) to (8-15) and (9-1) to (9-14) are mentioned as preferable examples of compounds included in the formulas (8) and (9). ##STR19##

These compounds expressed by the formulas (8) and (9) have a negative or weakly positive dielectric anisotropy, and among these compounds, those expressed by the formula (8) are used as composition components, mainly for reducing the viscosity and adjusting the optical anisotropy and those expressed by the formula (9) are used thereas mainly for broadening the liquid crystal temperature range and/or for adjusting the optical anisotropy.

Compounds expressed by the formulas (5) to (9) are indispensable when liquid crystal compositions particularly for STN type display mode and for usual TN type display mode are prepared.

The quantity of the compounds used for preparing the liquid crystal compositions for usual STN type display mode and TN type display mode is suitably in the range of 1 to 99% by weight based upon the total weight of the liquid crystal compositions, preferably 10 to 97% by weight, more preferably 40 to 95% by weight.

The liquid crystal compositions provided according to the present invention are preferred to contain at least one kind of the liquid crystalline compounds expressed by the formula (1) in a proportion of 0.1 to 99% by weight, in order to exhibit superior characteristics. The liquid crystal compositions are generally prepared according to known process, for example a process of mutually dissolving various components at high temperatures. Further, if necessary, a suitable additive is added, whereby improvement according to aimed use applications is made to optimize the compositions. Such additives have been known to person of ordinary skill in the art and described in literatures in detail. Usually, there are added a chiral dopant or the like having an effect of inducing the helical structure of liquid crystals to adjust necessary twist angle and thereby prevent reverse twist.

Further, when a dichroic pigment such as those of merocyanine group, styryl group, azo group, azoxy group, quinophthalone group, anthraquinone group, tetrazine group, etc. is added, the resulting compositions can also be used as those for GH type mode. The compositions according to the present invention can be used not only for NCAP prepared by micro-encapsulating nematic liquid crystals, polymer-dispersed type liquid crystal display element (PDLCD) such as polymer network liquid crystal display element (PNLCD), but also as liquid crystal compositions of birefringence adjusted (ECB) type and DS type.

As examples of the liquid crystal compositions containing the compounds of the present invention, the following compositions can be mentioned, and in addition, Nos. of the compounds are the same as those shown in the Examples mentioned later:

COMPOSITION EXAMPLE 1

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-fluorobenzene (No. 177) 5% by weight

(E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,4-difluorobenzene (No. 266) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4'-difluorobiphenyl (No. 76) 5% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,4-difluorobenzene (No. 176) 5% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-ethylbenzene (No. 204) 4% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 9% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 9% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 9% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 4% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 4% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 7% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 3% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-ethyl)-3,4,5-trifluorobenzene 5% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 5% by weight

(trans-4-(2-trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

trans-4-propylcyclohexyl-4-ethoxybenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

COMPOSITION EXAMPLE 2

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 4% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-chlorobenzene (No. 179) 5% by weight

(E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl-3-fluoro-4-chlorobenzene (No. 267) 5% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-fluorobenzene (No. 2) 6% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene (No. 180) 5% by weight

trans-4-heptylcyclohexyl-3,4-difluorobenzene 4% by weight

(2-(trans-4-pentylcyclohexyl)ethyl)-3,4-difluorobenzene 6% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(2-(trans-4-ethylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 2% by weight

(trans-4-(2-(trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 10% by weight

4-(trans-4-ethylcyclohexyl)-4'-fluorobiphenyl 4% by weight

4-(trans-4-propylcyclohexyl)-4'-fluorobiphenyl 4% by weight

4-(trans-4-pentylcyclohexyl)-4'-fluorobiphenyl 2% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-fluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 6% by weight

COMPOSITION EXAMPLE 3

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4',5'-trifluorobiphenyl (No. 81) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3'-fluoro-4'-chlorobiphenyl (No. 77) 4% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene (No. 138) 4% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-chlorobenzene (No. 181) 4% by weight

(trans-4-propylcyclohexyl)-4-chlorobenzene 5% by weight

(trans-4-pentylcyclohexyl)-4-chlorobenzene 5% by weight

(trans-4-heptylcyclohexyl)-4-chlorobenzene 5% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-4-chlorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-chlorobenzene 8% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-4-chlorobenzene 7% by weight

4-(trans-4-propylcyclohexyl)-3',4',5'-trifluorobiphenyl 6% by weight

4-(trans-4-pentylcyclohexyl)-3',4',5'-trifluorobiphenyl 6% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 4% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-chlorobenzene 7% by weight

COMPOSITION EXAMPLE 4

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl-4-trifluoromethoxybenzene (No. 141) 3% by weight

(E)-(2-trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3-fluoro-4-trifluoromethylbenzene (No. 270) 3% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3'-fluoro-4'-trifluoromethoxybiphenyl (No. 80) 4% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene (No. 145) 4% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-ethylcyclohexyl)-4'-fluorobiphenyl 4% by weight

4-(trans-4-propylcyclohexyl)-4'-fluorobiphenyl 4% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

(trans-4-(2-(trans-4-butylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

(trans-4-(2-(trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 4% by weight

(trans-4-(trans-4-butylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 4% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 6% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 6% by weight

4-(trans-4-propylcyclohexyl)-3',4',5'-trifluorobiphenyl 5% by weight

4-(trans-4-pentylcyclohexyl)-3',4',5'-trifluorobiphenyl 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-chlorobenzene 4% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-4-chlorobenzene 4% by weight

COMPOSITION EXAMPLE 5

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (No. 72) 4% by weight

(E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene (No. 272) 6% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',5'-difluoro-4'-chlorobiphenyl (No. 82) 5% by weight

(E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl-4-fluorobenzene (No. 261) 5% by weight

trans-4-heptylcyclohexyl-3,4,5-trifluorobenzene 5% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 10% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 10% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 10% by weight

(trans-4-(2-(trans-4-ethylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 6% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 3% by weight

(trans-4-(2-(trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 6% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-fluorobenzene 4% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

4-fluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 4% by weight

4-fluorophenyl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

COMPOSITION EXAMPLE 6

(E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-chlorobenzene (No. 273) 5% by weight

(E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethylbenzene (No. 276) 5% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene (No. 16) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',5'-difluoro-4'-trifluoromethylbiphenyl (No. 84) 5% by weight

trans-4-heptylcyclohexyl-3,4,5-trifluorobenzene 8% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 9% by weight

(trans-4-(2-(trans-4-butylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 9% by weight

(trans-4-(2-(trans-4-pentylcyclohexyl)ethyl)cyclohexyl)3,4,5-trifluorobenzene 9% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 9% by weight

(trans-4-(trans-4-butylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 8% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 7% by weight

4-(trans-4-propylcyclohexyl)-3',4',5'-trifluorobiphenyl 8% by weight

2-(trans-4-pentylcyclohexyl)-3',4',5'-trifluorobiphenyl 8% by weight

COMPOSITION EXAMPLE 7

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 7% by weight

(E)-4-(2-trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-benzonitrile (No. 245) 7% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl (No. 36) 7% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-ethylbenzene (No. 9) 6% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 5% by weight

4-(trans-4-ethylcyclohexyl)benzonitrile 5% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 10% by weight

trans,trans-4-propyl-4'-butylbicyclohexane 7% by weight

trans,trans-4-propyl-4'-pentylbicyclohexane 3% by weight

4-ethyl-4'-methoxytolan 3% by weight

4-propyl-4'-methoxytolan 3% by weight

4-butyl-4'-methoxytolan 3% by weight

4-butyl-4'-ethoxytolan 3% by weight

4-pentyl-4'-methoxytolan 3% by weight

4-(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

4-(trans-4-(trans-4-butylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 3% by weight

COMPOSITION EXAMPLE 8

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile (No. 19) 5% by weight

(E)-4-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile (No. 260) 5% by weight

(E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-ethylcyclohexane (No. 375) 4% by weight

(E)-4-(trans-4-(3-butenyl)cyclohexyl)benzonitrile 10% by weight

(E)-4-(trans-4-(3-pentenyl)cyclohexyl)benzonitrile 10% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 7% by weight

trans,trans-4-methoxymethyl-4'-propylcyclohexane 5% by weight

trans,trans-4-propyl-4'-butylbicyclohexane 8% by weight

4-ethyl-4'-methyltolan 4% by weight

4-methyl-4'-hexyltolan 8% by weight

4,4'-dibutyltolan 4% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 7% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 4% by weight

2-(4'-propylbiphenylyl-4-yl)-5-butylpyrimidine 4% by weight

COMPOSITION EXAMPLE 9

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-trifluoromethoxybenzene (No. 8) 4% by weight

(E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)benzonitrile (No. 232) 8% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl) (No. 205) 4% by weight

4-ethyl-4'-cyanobiphenyl 7% by weight

4-(4-fluorophenyl)-5-pentylpyrimidine 4% by weight

4-(trans-4-methoxymethylcyclohexyl)benzonitrile 10% by weight

4-(trans-4-ethoxymethylcyclohexyl)benzonitrile 8% by weight

4-cyanophenyl-4-ethylbenzoate 5% by weight

2-(4-ethylphenyl)-5-ethylpyrimidine 3% by weight

2-(4-ethylphenyl)-5-propylpyrimidine 3% by weight

2-(4-ethylphenyl)-5-butylpyrimidine 3% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-4-methylbenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 8% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-butylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 5% by weight

2-(4-ethoxyphenyl)-5-propylpyrimidine 4% by weight

COMPOSITION EXAMPLE 10

(E)-4-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)benzonitrile (No. 120) 6% by weight

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-4'-cyanobiphenyl (No. 41) 7% by weight

(E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-propylcyclohexane (No. 376) 6% by weight

2-(3,4-difluorophenyl)-5-propylpyrimidine 8% by weight

2-(4-ethylphenyl)-5-ethylpyrimidine 5% by weight

2-(4-ethylphenyl)-5-propylpyrimidine 5% by weight

2-(4-ethylphenyl)-5-butylpyrimidine 5% by weight

4-butoxyphenyl-trans-4-propylcyclohexanecarboxylate 6% by weight

4-ethoxyphenyl-trans-4-butylcyclohexanecarboxylate 6% by weight

4-methoxyphenyl-trans-4-pentylcyclohexanecarboxylate 4% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-butylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-pentylpyrimidine 5% by weight

4-(2-(trans-4-ethylcyclohexyl)ethyl)-4'-butyltolan 4% by weight

4-(2-(trans-4-propylcyclohexyl)ethyl)-4'-butyltolan 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 5% by weight

4'-cyanobiphenyl-4-yl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 3% by weight

4'-cyanobiphenyl-4-yl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 3% by weight

4'-cyanobiphenyl-4-yl-4-(trans-4-propylcyclohexyl)benzoate 3% by weight

COMPOSITION EXAMPLE 11

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 5% by weight

(E)-4-(2-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile (No. 282) 5% by weight

(E)-trans-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4-propylcyclohexane (No. 396) 5% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-propylbenzene (No. 205) 5% by weight

3-fluoro-4-cyanophenyl-4-ethoxymethylbenzoate 4% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 11% by weight

4-(trans-4-ethylcyclohexyl)-2-fluorobenzonitrile 7% by weight

4-(trans-4-propylcyclohexyl)-2-fluorobenzonitrile 8% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-2-fluorobenzonitrile 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

4-(2-(trans-4-propylcyclohexyl)ethyl)-4'-ethyltolan 3% by weight

4-(2-(trans-4-propylcyclohexyl)ethyl)-4'-propyltolan 3% by weight

4-(2-(trans-4-propylcyclohexyl)ethyl)-4'-butyltolan 3% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 3% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-propyltolan 3% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-butyltolan 3% by weight

COMPOSITION EXAMPLE 12

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile (No. 19) 4% by weight

(E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (No. 117) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-propylbiphenyl (No. 37) 3% by weight

(E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-propylcyclohexane (No. 376) 3% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-fluorobenzene (No. 2) 4% by weight

(E)-4-(trans-4-(3-butenyl)cyclohexyl)benzonitrile 9% by weight

(E)-4-(trans-4-(3-pentenyl)cyclohexyl)benzonitrile 9% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 13% by weight

4-(trans-4-pentylcyclohexyl)benzonitrile 7% by weight

4-(trans-4-methoxymethylcyclohexyl)benzonitrile 5% by weight

4-(trans-4-ethoxymethylcyclohexyl)benzonitrile 5% by weight

4-ethyl-4'-methoxytolan 5% by weight

trans,trans-4-propyl-4'-butylbicyclohexane 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-fluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 8% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 4% by weight

COMPOSITION EXAMPLE 13

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (No. 35) 4% by weight

(E)-trans-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-propylcyclohexane (No. 408) 4% by weight

3-fluoro-4-cyanophenyl-4-ethoxymethylbenzoate 3% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 8% by weight

3-fluoro-4-cyanophenyl-4-butoxymethylbenzoate 5% by weight

methyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 7% by weight

trans-4-propylcyclohexyl-4-ethoxybenzene 10% by weight

4-butoxyphenyl-trans-4-propylcyclohexanecarboxylate 4% by weight

4-propylphenyl-trans-4-butylcyclohexanecarboxylate 4% by weight

4-butylphenyl-trans-4-butylcyclohexanecarboxylate 4% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 4% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 4% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-butylpyrimidine 4% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

4-fluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-trans-4-propylcyclohexanecarboxylate 4% by weight

COMPOSITION EXAMPLE 14

(E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)benzonitrile (No. 232) 4% by weight

(E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (No. 117) 4% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-fluorobenzene (No. 177) 4% by weight

(E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-ethylcyclohexane (No. 375) 5% by weight

2-(4-cyanophenyl)-5-propyldioxane 6% by weight

2-(4-cyanophenyl)-5-butyldioxane 6% by weight

4-(trans-4-methoxymethylcyclohexyl)benzonitrile 7% by weight

2-(4-ethylphenyl)-5-ethylpyrimidine 8% by weight

2-(4-ethylphenyl)-5-propylpyrimidine 8% by weight

2-(4-ethylphenyl)-5-butylpyrimidine 8% by weight

trans,trans-4-methoxymethyl-4'-pentylbicyclohexane 7% by weight

2-(4-trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 6% by weight

2-(4-trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 6% by weight

2-(4-trans-4-propylcyclohexyl)phenyl)-5-butylpyrimidine 6% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 5% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-propyltolan 5% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-butyltolan 5% by weight

COMPOSITION EXAMPLE 15

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (No. 35) 5% by weight

(E)-(trans-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene (No. 141) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 5% by weight

(E)-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4-ethylbenzene (No. 249) 5% by weight

4-cyanophenyl-4-ethylbenzoate 6% by weight

4-ethyl-4'-cyanobiphenyl 12% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 6% by weight

4-ethylphenyl-4-methoxybenzoate 6% by weight

4-butoxyphenyl-trans-4-propylcyclohexanecarboxylate 8% by weight

4-ethoxyphenyl-trans-4-butylcyclohexanecarboxylate 8% by weight

4-methoxyphenyl-trans-4-pentylcyclohexanecarboxylate 8% by weight

4-fluorophenyl-4-(trans-4-propylcyclohexyl)benzoate 6% by weight

4-fluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-4-(trans-4-propylcyclohexylcarbonyloxy)benzoate 5% by weight

4-ethylphenyl-4-(trans-4-propylcyclohexylcarbonyloxy)benzoate 5% by weight

COMPOSITION EXAMPLE 16

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile (No. 19) 8% by weight

(E)-3,5-difluoro-4-cyanophenyl-4-(3-pentenyl)benzoate 16% by weight

3-fluoro-4-cyanophenyl-4-ethoxymethylbenzoate 5% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 13% by weight

4-(trans-4-propylcyclohexyl)-2-fluorobenzonitrile 11% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 13% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-2-fluorobenzonitrile 11% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 8% by weight

2-(4'-fluorobiphenyl-4-yl)-5-butylpyrimidine 8% by weight

2-(4'-fluorobiphenyl-4-yl)-5-pentylpyrimidine 7% by weight

COMPOSITION EXAMPLE 17

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-trifluoromethylbenzene (No. 7) 5% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,4-difluorobenzene (No. 176) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3'-fluoro-4'-trifluoromethoxybiphenyl (No. 80) 5% by weight

trans,trans-4-propyl-4'-methoxybicyclohexane 4% by weight

trans,trans-4-propyl-4'-propoxybicyclohexane 4% by weight

trans,trans-4-pentyl-4'-methoxybicyclohexane 6% by weight

trans-4-pentylcyclohexyl-4-fluorobenzene 6% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 4% by weight

(trans-4-(trans-4-butylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 6% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 6% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)ethyl)-3,4-fifluorobenzene 6% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-3,4-difluorobenzene 6% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,5-difluoro-4-difluoromethoxybenzene 10% by weight

3,4-difluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 3% by weight

4-(trans-4-pentylcyclohexyl)-3'-fluoro-4'-ethylbiphenyl 3% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-difluoromethoxybenzene 6% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-4-difluoromethoxybenzene 6% by weight

COMPOSITION EXAMPLE 18

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4'-difluorobiphenyl (No. 76) 6% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene (No. 145) 6% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4',5'-trifluorobiphenyl (No. 81) 5% by weight

(trans-4-pentylcyclohexyl)-4-fluorobenzene 9% by weight

(trans-4-hexylcyclohexyl)-4-fluorobenzene 9% by weight

(trans-4-heptylcyclohexyl)-4-fluorobenzene 9% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 6% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 6% by weight

(trans-4-(trans-4-butylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 6% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 6% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)ethyl)-4-trifluoromethoxybenzene 5% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-4-trifluoromethoxybenzene 5% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

4,4'-bis(trans-4-propylcyclohexyl)-2-fluorobiphenyl 3% by weight

2-fluoro-4-(trans-4-pentylcyclohexyl)-4'-(trans-4-propylcyclohexyl)biphenyl 3% by weight

COMPOSITION EXAMPLE 19

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 9% by weight

(E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-propylbenzene (No. 205) 8% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 8% by weight

(E)-4-(trans-4-(2-propenyl)cyclohexyl)benzonitrile 3% by weight

4-butyl-4'-ethylbiphenyl 3% by weight

4-propyl-4'-cyanobiphenyl 5% by weight

4-pentyl-4'-cyanobiphenyl 5% by weight

4-(trans-4-ethylcyclohexyl)-2-fluorobenzonitrile 5% by weight

(2-(trans-4-propylcyclohexyl)ethyl)-4-ethoxybenzene 4% by weight

(2-(trans-4-pentylcyclohexyl)ethyl)-4-propoxybenzene 8% by weight

4-cyanophenyl-propylbenzoate 5% by weight

4-methoxyphenyl-trans-4-pentylcyclohexanecarboxylate 11% by weight

4-propoxyphenyl-trans-4-pentylcyclohexanecarboxylate 11% by weight

4"-pentyl-4-cyanoterphenyl 3% by weight

2-(4-cyanophenyl)-5-(4-butylphenyl)pyrimidine 3% by weight

2-(4-pentylphenyl)-5-(4-butylphenyl)pyrimidine 3% by weight

(2-(4-(trans-4-pentylcyclohexyl)phenyl)ethyl)-4-butylbenzene 3% by weight

(2-(4-(trans-4-pentylcyclohexyl)biphenyl)-4'-yl)ethyl)-4-propylbenzene 3% by weight

COMPOSITION EXAMPLE 20

(E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (No. 117) 7% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (No. 35) 7% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-propylbenzene (No. 10) 6% by weight

3,4-difluorophenyl-trans-4-butylcyclohexanecarboxylate 5% by weight

3,4-difluorophenyl-trans-4-pentylcyclohexanecarboxylate 5% by weight

3-fluoro-4-cyanophenyl-ethylbenzoate 4% by weight

3-fluoro-4-cyanophenyl-propylbenzoate 4% by weight

3-fluoro-4-cyanophenyl-butylbenzoate 6% by weight

3-fluoro-4-cyanophenyl-pentylbenzoate 6% by weight

4-(trans-4-methoxypropylcyclohexyl)-2-fluorobenzonitrile 10% by weight

3,4-difluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 4% by weight

3,4-difluorophenyl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 6% by weight

3-fluoro-4-cyanophenyl-4-(trans-4-ethylcyclohexyl)benzoate 4% by weight

3-fluoro-4-cyanophenyl-4-(trans-4-propylcyclohexyl)benzoate 4% by weight

3-fluoro-4-cyanophenyl-4-(trans-4-butylcyclohexyl)benzoate 6% by weight

3-fluoro-4-cyanophenyl-4-(trans-4-pentylcyclohexyl)benzoate 6% by weight

4-(trans-4-propylcyclohexyl)-4'-ethyltolan 10% by weight

COMPOSITION EXAMPLE 21

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-fluorobiphenyl (No. 73) 6% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4'-difluorobiphenyl (No. 76) 6% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl (No. 36) 5% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 10% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 10% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 10% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 10% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 7% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 3% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 5% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 5% by weight

(trans-4-(2-(trans-pentylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

trans-4-propylcyclohexyl-4-ethoxybenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

COMPOSITION EXAMPLE 22

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (No. 72) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl (No. 36) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4'-difluorobiphenyl (No. 76) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-trifluoromethylbiphenyl (No. 78) 5% by weight

trans-4-heptylcyclohexyl-3,4-difluorobenzene 4% by weight

(2-(trans-4-pentylcyclohexyl)ethyl)-3,4-difluorobenzene 6% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(2-(trans-4-ethylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 2% by weight

(trans-4-(2-trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 5% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 10% by weight

4-(trans-4-ethylcyclohexyl)-4'-fluorobiphenyl 4% by weight

4-(trans-4-propylcyclohexyl)-4'-fluorobiphenyl 4% by weight

4-(trans-4-pentylcyclohexyl)-4'-fluorobiphenyl 2% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-fluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 6% by weight

COMPOSITION EXAMPLE 23

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4'-difluorobiphenyl (No. 76) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-trifluoromethylbiphenyl (No. 78) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (No. 72) 8% by weight

(trans-4-propylcyclohexyl)-4-chlorobenzene 5% by weight

(trans-4-pentylcyclohexyl)-4-chlorobenzene 5% by weight

(trans-4-heptylcyclohexyl)-4-chlorobenzene 5% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 8% by weight

(trans-4-(trans-4-ehtylcyclohexyl)cyclohexyl)-4-chlorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-chlorobenzene 8% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-4-chlorobenzene 7% by weight

4-(trans-4-propylcyclohexyl)-3',4',5'-trifluorobiphenyl 6% by weight

4-(trans-4-pentylcyclohexyl)-3',4',5'-trifluorobiphenyl 6% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 4% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-chlorobenzene 7% by weight

COMPOSITION EXAMPLE 24

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (No. 72) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4'-difluorobiphenyl (No. 76) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 5% by weight

trans-4-heptylcyclohexyl-3,4,5-trifluorobenzene 5% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 12% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 12% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 12% by weight

(trans-4-(2-(trans-4-ethylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 6% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 3% by weight

(trans-4-(2-(trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene 6% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-fluorobenzene 4% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

4-fluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 4% by weight

4-(fluorophenyl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

COMPOSITION EXAMPLE 25

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (No. 72) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-trifluoromethylbiphenyl (No. 78) 4% by weight

trans-4-heptylcyclohexyl-3,4,5-trifluorobenzene 16% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 9% by weight

(trans-4-(2-(trans-4-butylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 9% by weight

(trans-4-(2-(trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene 9% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 9% by weight

(trans-4-(trans-4-butylcyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene 5% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 8% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene 7% by weight

4-(trans-4-propylcyclohexyl)-3',4',5'-trifluorobiphenyl 8% by weight

2-(trans-4-pentylcyclohexyl)-3',4',5'-trifluorobiphenyl 8% by weight

COMPOSITION EXAMPLE 26

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 7% by weight

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile (No. 19) 7% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl (No. 36) 7% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-(trans-4-propylcyclohexyl)benzene (No. 207) 6% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 5% by weight

4-(trans-4-ethylcyclohexyl)benzonitrile 5% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 10% by weight

trans,trans-4-propyl-4'-butylcyclohexane 7% by weight

trans,trans-4-propyl-4'-pentylcyclohexane 3% by weight

4-ethyl-4'-methoxytolan 3% by weight

4-propyl-4'-methoxytolan 3% by weight

4-butyl-4'-methoxytolan 3% by weight

4-butyl-4'-ethoxytolan 3% by weight

4-pentyl-4'-methoxytolan 3% by weight

4-(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

4-(trans-4-(trans-4-butylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyridine 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 3% by weight

COMPOSITION EXAMPLE 27

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile (No. 19) 5% by weight

(E)-4-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile (No. 260) 5% by weight

(E)-4-(trans-4-(5,5,5-trifluoropentenyl)cyclohexyl)benzonitrile (No. 312) 4% by weight

(E)-4-(trans-4-(3-butenyl)cyclohexyl)benzonitrile 10% by weight

(E)-4-(trans-4-(3-pentenyl)cyclohexyl)benzonitrile 10% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 7% by weight

trans,trans-4-methoxymethyl-4'-propylcyclohexane 5% by weight

trans,trans-4-propyl-4'-butylbicyclohexane 8% by weight

4-ethyl-4'-methyltolan 4% by weight

4-methyl-4'-hexyltolan 8% by weight

4,4'-dibutyltolan 4% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)benzonitrile 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 7% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 4% by weight

2-(4'-propylbiphenylyl-4-yl)-5-butylpyrimidine 4% by weight

COMPOSITION EXAMPLE 28

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 8% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-(trans-4-propylcyclohexyl)benzene (No. 207) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-trifluoromethylbiphenyl (No. 78) 4% by weight

4-ethyl-4'-cyanobiphenyl 7% by weight

2-(4-fluorophenyl)-5-pentylpyrimidine 4% by weight

4-(trans-4-methoxymethylcyclohexyl)benzonitrile 10% by weight

4-(trans-4-ethoxymethylcyclohexyl)benzonitrile 8% by weight

4-cyanophenyl-4-ethylbenzoate 5% by weight

2-(4-ethylphenyl)-5-ethylpyrimidine 3% by weight

2-(4-ethylphenyl)-5-propylpyrimidine 3% by weight

2-(4-ethylphenyl)-5-butylpyrimidine 3% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-4-methylbenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 8% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 5% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-butylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 5% by weight

2-(4-ethoxyphenyl)-5-propylpyrimidine 4% by weight

COMPOSITION EXAMPLE 29

(E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (No. 117) 6% by weight

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-4'-cyanobiphenyl (No. 41) 7% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl (No. 36) 6% by weight

2-(3,4-difluorophenyl)-5-propylpyrimidine 8% by weight

2-(4-ethylphenyl)-5-ethylpyrimidine 5% by weight

2-(4-ethylphenyl)-5-propylpyrimidine 5% by weight

2-(4-ethylphenyl)-5-butylpyrimidine 5% by weight

4-butoxyphenyl-trans-4-propylcyclohexanecarboxylate 6% by weight

4-ethoxyphenyl-trans-4-butylcyclohexanecarboxylate 6% by weight

4-methoxyphenyl-trans-4-pentylcyclohexanecarboxylate 4% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-butylpyrimidine 5% by weight

2-(4'-fluorobiphenyl-4-yl)-5-pentylpyrimidine 5% by weight

4-(2-(trans-4-ethylcyclohexyl)ethyl)-4'-butyltolan 4% by weight

4-(2-(trans-4-propylcyclohexyl)ethyl)-4'-butyltolan 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 5% by weight

4'-cyanobiphenyl-4-yl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 3% by weight

4'-cyanobiphenyl-4-yl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 3% by weight

4'-cyanobiphenyl-4-yl-4-(trans-4-propylcyclohexyl)benzoate 3% by weight

COMPOSITION EXAMPLE 30

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 5% by weight

(E)-4-(2-trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile (No. 260) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl (No. 36) 5% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-(trans-4-propylcyclohexyl)benzene (No. 207) 5% by weight

3-fluoro-4-cyanophenyl-4-ethoxymethylbenzoate 4% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 11% by weight

4-(trans-4-ethylcyclohexyl)-2-fluorobenzonitrile 7% by weight

4-(trans-4-propylcyclohexyl)-2-fluorobenzonitrile 8% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 5% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-2-fluorobenzonitrile 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

4-(2-trans-4-propylcyclohexyl)ethyl)-4'-ethyltolan 3% by weight

4-(2-(trans-4-propylcyclohexyl)ethyl)-4'-propyltolan 3% by weight

4-(2-(trans-4-propylcyclohexyl)ethyl)-4'-butyltolan 3% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 3% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-propyltolan 3% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-butyltolan 3% by weight

COMPOSITION EXAMPLE 31

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile (No. 19) 4% by weight

(E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (No. 117) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-propylbiphenyl (No. 37) 3% by weight

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-(trans-4-propylcyclohexyl)benzene (No. 207) 3% by weight

(E)-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)benzonitrile (No. 29) 4% by weight

(E)-4-(trans-4-(3-butenyl)cyclohexyl)benzonitrile 9% by weight

(E)-4-(trans-4-(3-pentenyl)cyclohexyl)benzonitrile 9% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 13% by weight

4-(trans-4-pentylcyclohexyl)benzonitrile 7% by weight

4-(trans-4-methoxymethylcyclohexyl)benzonitrile 5% by weight

4-(trans-4-ethoxymethylcyclohexyl)benzonitrile 5% by weight

4-ethyl-4'-methoxytolan 5% by weight

trans,trans-4-propyl-4'-butylcyclohexane 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-fluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methoxybenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-propylbenzene 8% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 4% by weight

COMPOSITION EXAMPLE 32

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (No. 35) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-(trans-4-butylcyclohexyl)biphenyl (No. 212) 3% by weight

3-fluoro-4-cyanophenyl-4-ethoxymethylbenzoate 3% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 8% by weight

3-fluoro-4-cyanophenyl-4-butoxymethylbenzoate 5% by weight

methyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 7% by weight

trans-4-propylcyclohexyl-4-ethoxybenzene 10% by weight

4-butoxyphenyl-trans-4-propylcyclohexanecarboxylate 4% by weight

4-propylphenyl-trans-4-butylcyclohexanecarboxylate 4% by weight

4-butylphenyl-trans-4-butylcyclohexanecarboxylate 4% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 4% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 4% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-butylpyrimidine 4% by weight

(trans-4-(trans-4-ethylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-3,4-difluorobenzene 4% by weight

(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-4-methylbenzene 5% by weight

4-fluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-trans-4-ethylcyclohexanecarboxylate 4% by weight

COMPOSITION EXAMPLE 33

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (No. 1) 5% by weight

(E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (No. 117) 4% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 4% by weight

(E)-trans-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-propylcyclohexane (No. 393) 4% by weight

2-(4-cyanophenyl)-5-propyldioxane 6% by weight

2-(4-cyanophenyl)-5-butyldioxane 6% by weight

4-(trans-4-methoxymethylcyclohexyl)benzonitrile 7% by weight

2-(4-ethylphenyl)-5-ethylpyrimidine 8% by weight

2-(4-ethylphenyl)-5-propylpyrimidine 8% by weight

2-(4-ethylphenyl)-5-butylpyrimidine 8% by weight

trans,trans-4-methoxymethyl-4'-pentylbicyclohexane 7% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-ethylpyrimidine 6% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-propylpyrimidine 6% by weight

2-(4-(trans-4-propylcyclohexyl)phenyl)-5-butylpyrimdine 6% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-ethyltolan 5% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-propyltolan 5% by weight

2-fluoro-4-(trans-4-propylcyclohexyl)-4'-butyltolan 5% by weight

COMPOSITION EXAMPLE 34

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (No. 35) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-trifluoromethylbiphenyl (No. 78) 5% by weight

(E)-4-(trans-4-(4-fluorobiphenyl)cyclohexyl)-4'fluorobiphenyl (No. 73) 5% by weight

(E)-trans-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-propylcyclohexane (No. 393) 5% by weight

4-cyanophenyl-4-ethylbenzoate 6% by weight

4-ethyl-4'-cyanobiphenyl 12% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 6% by weight

4-ethylphenyl-4-methoxybenzoate 6% by weight

4-butoxyphenyl-trans-4-propylcyclohexanecarboxylate 8% by weight

4-ethoxyphenyl-trans-4-butylcyclohexanecarboxylate 8% by weight

4-methoxyphenyl-trans-4-pentylcyclohexanecarboxylate 8% by weight

4-fluorophenyl-4-(trans-4-propylcyclohexyl)benzoate 6% by weight

4-fluorophenyl-trans-4-(trans-4-propylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarboxylate 5% by weight

4-fluorophenyl-4-(trans-4-propylcyclohexylcarbonyloxybenzoate 5% by weight

4-ethylphenyl-4-(trans-4-propylcyclohexylcarbonyloxy)benzoate 5% by weight

COMPOSITION EXAMPLE 35

(E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile (No. 19) 8% by weight

(E)-3,5-difluoro-4-cyanophenyl-4-(3-pentenyl)benzoate 16% by weight

3-fluoro-4-cyanophenyl-4-ethoxymethylbenzoate 5% by weight

3-fluoro-4-cyanophenyl-4-propoxymethylbenzoate 13% by weight

4-(trans-4-propylcyclohexyl)-2-fluorobenzonitrile 11% by weight

4-(trans-4-propylcyclohexyl)benzonitrile 13% by weight

4-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)-2-fluorobenzonitrile 11% by weight

2-(4'-fluorobiphenyl-4-yl)-5-propylpyrimidine 8% by weight

2-(4'-fluorobiphenyl-4-yl)-5-butylpyrimidine 8% by weight

2-(4'-fluorobiphenyl-4-yl)-5-pentylpyrimidine 7% by weight

COMPOSITION EXAMPLE 36

(E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-(trans-4-propylcyclohexyl)benzene (No. 207) 7% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl (No. 73) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl (No. 36) 5% by weight

(E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-trifluoromethylbiphenyl (No. 78) 5% by weight

4-(trans-4-ethylcyclohexyl)-3',4'-difluorobiphenyl 7% by weight

4-(trans-4-propylcyclohexyl)-3',4'-difluorobiphenyl 7% by weight

4-(trans-4-pentylcyclohexyl)-3',4'-difluorobiphenyl 14% by weight

(trans-4-pentylcyclohexyl)-4-fluorobenzene 5% by weight

(trans-4-heptylcyclohexyl)-4-fluorobenzene 5% by weight

(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene 8% by weight

(trans-4-(2-(trans-4-propylcyclohexyl)ethyl)cyclohexyl)-4-trifluoromethoxybenzene 8% by weight

(trans-4-(2-trans-4-pentylcyclohexyl)ethyl)cyclohexyl)-4-trifluoromethoxybenzene 8% by weight

(2-(trans-4-(trans-4-propylcyclohexyl)cyclohexyl)ethyl)-4-trifluoromethoxybenzene 8% by weight

(2-(trans-4-(trans-4-pentylcyclohexyl)cyclohexyl)ethyl)-4-trifluoromethoxybenzene 8% by weight

EXAMPLE

The present invention will be described in more detail by way of Examples, but it should not be construed to be limited thereto.

In addition, in these Examples, Cr represent crystal, N represents nematic phase, S_(B) represents smectic B phase, I_(so) represents isotropic liquid, and the unit of the phase transition points refers to ° C.

Example 1

Preparation of (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (a compound of No. 1 of the formula (1) wherein Q represents CFH₂ ; l represents 1; m, o and p all represent 0; A₃ represents trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₃ represents covalent bond; L₁ and L₂ both represent H; and L₃ represents CN).

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (10.0 g, 24.8 millimols) with THF (50 ml) was cooled down to -20° C., followed by adding t-BuOK (3.1 g, 27.3 millimols) to the mixture, stirring the resulting mixture for 30 minutes, dropwise adding to the mixture, a THF (60 ml) solution of trans-4-(4-cyanophenyl)cyclohexanecarbaldehyde (5.8 g, 27.3 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, adding water (50 ml) to the reaction product after completion of the reaction, extracting the product with ethyl acetate (300 ml), three times washing the resulting organic layer with water, drying it over anhydrous magnesium sulfate, distilling off the solvent under reduced pressure, and subjecting the residue to silica gel column chromatography (eluent: toluene), to obtain raw 4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (5.0 g).

This raw product (5.0 g, 19.4 millimols) was mixed with sodium benzenesulfinate dihydrate (5.8 g, 29.1 millimols), 6N-hydrochloric acid (4.9 ml, 29.1 millimols) and ethanol (30 ml), followed by heating the mixture under reflux for 12 hours, adding water (100 ml) to the reaction product after completion of the reaction, extracting the mixture with ethyl acetate (300 ml), three times washing the resulting organic layer with a saturated sodium carbonate aqueous solution and then three times with water, drying it over anhydrous sodium sulfate, distilling off the solvent under reduced pressure and subjecting the residue to silica gel column chromatography (eluent: toluene), to obtain raw (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (4.8 g). This raw product was recrystallized from ethanol to obtain the captioned product (1.0 g) (yield 15%).

Cr 38.0-38.6N 51.9-52.0 I_(so)

The following compounds (No. 2 to No. 34) were prepared according to the process of Example 1:

No.

2. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-fluorobenzene

3. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-bromobenzene

4. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-fluoromethylbenzene

5. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-difluoromethylbenzene

6. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-difluoromethoxybenzene

7. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-trifluoromethylbenzene

8. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-trifluoromethoxybenzene

9. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-ethylbenzene

10. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-propylbenzene

11. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-pentylbenzene

Cr 2.4-2.7 I_(so)

12. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-3,4-difluorobenzene

13. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-3-fluoro-4-chlorobenzene

14. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-2-fluorobenzonitrile

15. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene

16. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene

17. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

18. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3,4,5-trifluorobenzene

19. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)benzonitrile

Cr 19.1-19.5N 43.2-43.3 I_(so)

20. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-4-trifluoromethoxybenzene

21. (E)-(trans-4-(5-fluoropentenyl)cyclohexyl)-4-hexyloxybenzene

22. (E)-(trans-4-(5-fluoropentenyl)cyclohexyl)-3-fluoro-4-difluoromethoxybenzene

23. (E)-(trans-4-(5-fluoropentenyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene

24. (E)-(trans-4-(5-fluoropentenyl)cyclohexyl)-3,5-difluoro-4-difluoromethylbenzene

25. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)benzonitrile

26. (E)-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-4-trifluoromethylbenzene

27. (E)-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)benzonitrile

28. (E)-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)-4-propylbenzene

29. (E)-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)benzonitrile

Cr 47.0-48.0 (N 45.7-45.8) I_(so)

30. (E)-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)-3-fluoro-4-difluoromethylbenzene

31. (E)-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)-4-methoxyethylbenzene

32. (E)-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)-4-methoxymethylbenzene

33. (E)-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)benzonitrile

34. (E)-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)-4-ethylbenzene

Example 2

Preparation of (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl-4'-cyanobiphenyl (a compound (No. 35) of the formula (1) wherein Q represents CFH₂ ; l represents 1; m and o both represents 0; p represents 1; A₂ represents trans-1,4-cyclohexylene group; A₃ and ring B both represent 1,4-phenylene group; Z₂ and Z₃ both represent covalent bond; L₁ and L₂ both represents H; and L₃ represents CN).

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (17.6 g, 43.7 millimols) with THF (85 ml) was cooled down to -20° C., followed by adding to the mixture, t-BuOK (4.9 g, 43.7 millimols) stirring for one hour, dropwise adding to the mixture, a THF (110 ml) solution of trans-4-(4"-cyanobiphenyl)cyclohexanecarbaldehyde (11.0 g, 38.0 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, adding water (100 ml) to the reaction product after completion of the reaction, extracting with ethyl acetate (600 ml), three times washing the resulting organic layer with water, drying over anhydrous magnesium sulphate, distilling off the solvent under reduced pressure, and subjecting the residue to silica gel column chromatography (eluent: toluene), to obtain raw 4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (11.1 g).

This raw product (11.1 g, 33.2 millimols) was mixed with sodium benzenesulfinate dihydride (10.0 g, 49.8 millimols), 6N-hydrochloric acid (8.3 ml, 49.8 millimols) and a mixed solvent of toluene/ethanol (1/1) (50 ml), heating the mixture under reflux for 16 hours, adding water (100 ml) to the reaction product after completion of the reaction, extracting with toluene (200 ml), three times washing the resulting organic layer with a saturated sodium carbonate aqueous solution and three times with water, drying over anhydrous sodium sulfate, distilling off the solvent under reduced pressure and subjecting the residue to silica gel column chromatography (eluent: toluene), to obtain raw (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (16.5 g). This product was recrystallized from a mixed solvent of ethyl acetate/heptane (3/7), to obtain the captioned compound (6.1 g, yield 48%).

Cr 130.3-131.1N 216.4-217.1 I_(so)

The following compounds (No. 36 to No. 71) were prepared according to the process of Example 2.

No.

36. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-ethylbiphenyl

Cr room temperature or lower S_(B) 166.9-167.5N 181.0 I_(so)

37. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-propylbiphenyl

Cr room temperature or lower S_(B) 177.8-178.8N 196.9-197.1 I_(so)

38. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-propoxyethylbiphenyl

39. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3'-fluoro-4'-cyanobiphenyl

40. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',5'-difluoro-4'-cyanobiphenyl

41. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-4'-cyanobiphenyl

Cr 118.9-119.8N 191.5-191.7 I_(so)

42. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-4'-methoxymethylbiphenyl

43. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-3'-fluoro-4'-cyanobiphenyl

44. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-3',5'-difluoro-4'-cyanobiphenyl

45. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-4'-cyanobiphenyl

46. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-4'-butylbiphenyl

47. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-3'-fluoro-4'-cyanobiphenyl

48. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-3',5'-difluoro-4'-cyanobiphenyl

49. (E)-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)-4'-cyanobiphenyl

50. (E)-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)-4'-butoxybiphenyl

51. (E)-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)-4'-ethylbiphenyl

52. (E)-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)-4'-cyanobiphenyl

53. (E)-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)-4'-methylbiphenyl

54. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl-4'-cyanobiphenyl

55. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4'-ethylbiphenyl

56. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4'-propylbiphenyl

57. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4'-pentylbiphenyl

58. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3'-fluoro-4'-cyanobiphenyl

59. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3',5'-difluoro-4'-cyanobiphenyl

60. (E)-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4'-cyanobiphenyl

61. (E)-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4'-butylbiphenyl

62. (E)-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4'-propoxymethylbiphenyl

63. (E)-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-3'-fluoro-4'-cyanobiphenyl

64. (E)-4-(2-(trans-4-(5-fluoro-2-pentenyl)cyclohexyl)ethyl)-4'-cyanobiphenyl

65. (E)-4-(2-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)ethyl)-4'-heptylbiphenyl

66. (E)-4-(2-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)ethyl)-4'-cyanobiphenyl

67. (E)-4-(2-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)ethyl)-4'-methoxyethylbiphenyl

68. (E)-4-(2-(trans-4-(7-fluoroheptenyl)cyclohexyl)ethyl)-4'-methoxymethylbiphenyl

69. (E)-4-(2-trans-4-(7-fluoro-3-heptenyl)cyclohexyl)ethyl)-3'-fluoro-4'-cyanobiphenyl

70. (E)-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)-3',5'-difluoro-4'-cyanobiphenyl

71. (E)-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)-4'-methylbiphenyl

Example 3

Preparation of (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (a compound of No. 72 of the formula (1) wherein Q represents CFH₂ ; l represents 1; m and o both represent 0; p represents 1; A₂ represents trans-1,4-cyclohexylene group; A₃ and ring B both represent 1,4-phenylene group; Z₂ and Z₃ both represent covalent bond; L₁ and L₂ both represent H; and L₃ represents Cl)

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (14.0 g, 34.6 millimols) with THF (65 ml) was cooled down to -20° C., followed by adding to the mixture, t-BuOK (4.0 g, 34.6 millimols), stirring the mixture for one hour, dropwise adding thereto a THF (100 ml) solution of trans-4-(4"-chlorobiphenyl)cyclohexanecarbaldehyde (9.0 g, 34.6 millimols) so as to keep the temperature at -20° C. or lower, stirring at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 2 except that the quantity of ethyl acetate used for extraction was made 500 ml, to obtain raw 4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (9.2 g).

This raw product (9.2 g, 26.7 millimols) was mixed with sodium benzenesulfinate dihydrate (8.0 g, 40.0 millimols), 6N-hydrochloric acid (6.7 ml, 40.0 millimols) and a mixed solvent of toluene/ethanol (1/1) (70 ml), followed by heating the mixture under reflux for 12 hours, and treating the reaction product in the same manner as in Example 2 except that the toluene of effluent was made a mixed solution of ethyl acetate/heptane (6/4), to obtain raw (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (9.2 g).

This product was recrystallized from a mixed solvent of ethyl acetate/heptane (4/6), to obtain the captioned compound (2.9 g, yield 28%).

Cr 158.2-159.1N 180.9-181.1 I_(so)

The following compounds (No. 73 to No. 116) were prepared according to the process of Example 3.

No.

73. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-fluorobiphenyl

Cr 105.2-106.3N 162.0-162.2 I_(so)

74. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-bromobiphenyl

75. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-difluoromethylbiphenyl

76. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4'-difluorobiphenyl

Cr 51.6-52.7N 118.1-118.2 I_(so)

77. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3'-fluoro-4'-chlorobiphenyl

78. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-trifluoromethylbiphenyl

Cr 111.4-112.0N 128.7-128.8 I_(so)

79. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3'-fluoro-4'-difluoromethoxybiphenyl

80. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3'-fluoro-4'-trifluoromethoxybiphenyl

81. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',4',5'-trifluorobiphenyl

82. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',5'-difluoro-4'-chlorobiphenyl

83. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',5'-difluoro-4'-fluoromethylbiphenyl

84. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-3',5'-difluoro-4'-trifluoromethylbiphenyl

85. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-4'-chlorobiphenyl

86. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-4'-fluoromethylbiphenyl

87. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-3',4',5'-trifluorobiphenyl

88. (E)-4-(trans-4-(5-fluoropentenyl)cyclohexyl)-3',5'-difluoro-4-trifluoromethylbiphenyl

89. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-3'-fluoro-4'-difluoromethylbiphenyl

90. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-3',4',5'-trifluorobiphenyl

91. (E)-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-3',5'-difluoro-4'-trifluoromethoxybiphenyl

92. (E)-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)-3',5'-difluoro-4'-trifluoromethoxybiphenyl

93. (E)-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)-4'-difluoromethoxybiphenyl

94. (E)-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)-3'-fluoro-4'-trifluoromethoxybiphenyl

95. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4'-fluorobiphenyl

96. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4'-bromobiphenyl

97. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4'-chlorobiphenyl

98. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4'-difluoromethylbiphenyl

99. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3',4'-difluorobiphenyl

100. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3'-fluoro-4'-trifluoromethylbiphenyl

101. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3'-fluoro-4'-trifluoromethoxybiphenyl

102. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3',4',5'-trifluorobiphenyl

103. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3',5'-difluoro-4'-trifluoromethylbiphenyl

104. (E)-4-(2-trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-3',4'-difluorobiphenyl

105. (E)-4-(2-trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-3'-fluoro-4'-chlorobiphenyl

106. (E)-4-(2-trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-3',5'-difluoro-4'-difluoromethoxybiphenyl

107. (E)-4-(2-trans-4-(5-fluoro-2-pentenyl)cyclohexyl)ethyl)-3',4',5'-trifluorobiphenyl

108. (E)-4-(2-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)ethyl)-3'-fluoro-4'-trifluoromethylbiphenyl

109. (E)-4-(2-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)ethyl)-3',5'-difluoro-4'-fluoromethylbiphenyl

110. (E)-4-(2-(trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)-3',5'-difluoro-4'-trifluoromethoxybiphenyl

111. (E)-4-(2-(trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)-3'-fluoro-4'-difluoromethylbiphenyl

112. (E)-4-(2-trans-4-(6-fluoro-2-hexenyl)cyclohexyl)ethyl)-3',5'-difluoro-4'-chlorobiphenyl

113. (E)-4-(2-trans-4-(7-fluoro-2-pentenyl)cyclohexyl)ethyl)-3'-fluoro-4'-trifluoromethoxybiphenyl

114. (E)-4-(2-trans-4-(7-fluoro-3-pentenyl)cyclohexyl)ethyl)-4'-fluorobiphenyl

115. (E)-4-(2-trans-4-(7-fluoro-3-pentenyl)cyclohexyl)ethyl)-4'-difluoromethoxybiphenyl

116. (E)-4-(2-(trans-4-(7-fluoro-4-pentenyl)cyclohexyl)ethyl)-4'-trifluoromethylbiphenyl

Example 4

Preparation of (E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (a compound No. 117 of the formula (1) wherein Q represents CFH₂ ; l represents 1; m and o both represent 0; p represents 1; A₂ and A₃ both represent trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₂ and Z₃ both represent covalent bond; L₁ and L₂ both represent H; and L₃ represents CN.

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (15.0 g, 37.2 millimols) with THF (75 ml) was cooled down to -20° C., followed by adding t-BuOK (4.2 g, 37.2 millimols) to the mixture, stirring for one hour, dropwise adding to the mixture, a THF (100 ml) solution of trans-4-(trans-4-(4-cyanophenyl)cyclohexyl)cyclohexanecarbaldehyde (10.0 g, 37.2 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 3, to obtain raw (E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (9.9 g).

This raw product (9.9 g, 29.2 millimols) was mixed with sodium benzenesulfinate dihydrate (8.8 g, 43.7 millimols), 6N-hydrochloric acid (7.3 ml, 43.7 millimols) and a mixed solvent of toluene/ethanol (1/1) (50 ml), followed by heating the mixture under reflux for 12 hours, treating the resulting product in the same manner as in Example 3, to obtain raw (E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (9.9 g). This product was recrystallized from a mixed solvent of ethyl acetate/heptane (3/7), to obtain the captioned compound (3.9 g, yield 33.9%).

Cr 111.4-112.0N 211.3-211.6 I_(so)

The following compounds (No. 118 to No. 137) were prepared according to the process of Example 4:

No.

118. (E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-2-fluorobenzonitrile

119. (E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-2,6-difluorobenzonitrile

120. (E)-4-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)benzonitrile

121. (E)-4-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-2-fluorobenzonitrile

122. (E)-4-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-2,6-difluorobenzonitrile

123. (E)-4-(trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)benzonitrile

124. (E)-4-(trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)-2-fluorobenzonitrile

125. (E)-4-(trans-4-(trans-4-(5-fluoro-2-pentenyl)cyclohexyl)cyclohexyl)benzonitrile

126. (E)-4-(trans-4-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)cyclohexyl)benzonitrile

127. (E)-4-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)benzonitrile

128. (E)-4-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-2-fluorobenzonitrile

129. (E)-4-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-2,6-difluorobenzonitrile

130. (E)-4-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)benzonitrile

131. (E)-4-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)-2-fluorobenzonitrile

132. (E)-4-(trans-4-(2-(trans-4-(5-fluoro-2-pentenyl)cyclohexyl)ethyl)cyclohexyl)-2-fluorobenzonitrile

133. (E)-4-(trans-4-(2-trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)cyclohexyl)benzonitrile

134. (E)-4-(trans-4-(2-(trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)cyclohexyl)-2,6-difluorobenzonitrile

135. (E)-4-(trans-4-(2-(trans-4-(7-fluoro-2-heptenyl)cyclohexyl)ethyl)cyclohexyl)benzonitrile

136. (E)-4-(trans-4-(2-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)ethyl)cyclohexyl)-2-fluorobenzonitrile

137. (E)-4-(trans-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)cyclohexyl)benzonitrile

Example 5

Preparation of (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene (a compound No. 138 of the formula (1) wherein Q represents CFH₂ ; l represents 1; m and o both represent 0; p represent 1; A₂ and A₃ both represent trans-1,4-cyclohexylene group; ring B represents 2-fluoro-1,4-phenylene group (L₁ =F); Z₂ and Z₃ both represent covalent bond; L₂ represents H; and L₃ represents CF₃)

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (11.2 g, 27.8 millimols) with THF (50 ml) was cooled down to -20° C., followed by adding t-BuOK (3.1 g, 27.8 millimols) to the mixture, stirring for one hour, dropwise adding to the mixture, a THF (100 ml) solution of trans-4-(trans-4-(3-fluoro-4-trifluoromethylphenyl)cyclohexyl)cyclohexanecarbaldehyde (9.0 g, 25.3 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 2 except that the quantity of ethyl acetate used for extraction was made 400 ml, to obtain raw (trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene (8.9 g).

This raw product (8.9 g, 22.2 millimols) was mixed with sodium benzenesulfinate dihydrate (6.7 g, 33.3 millimols), 6N-hydrochloric acid (5.6 ml, 33.3 millimols) and a mixed solvent of toluene/ethanol (1/1) (45 ml) , followed by heating the mixture under reflux for 12 hours, and treating the reaction product in the same manner as in Example 2, to obtain raw (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl-3-fluoro-4-trifluoromethylbenzene (8.9 g). This product was recrystallized from a mixed solvent of ethyl acetate/heptane (3/7), to obtain the captioned compound (3.3 g, yield: 32.7%).

The following compounds (No. 139 to No. 175) were prepared according to the process of Example 5:

139. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-trifluoromethylbenzene

140. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-difluoromethoxybenzene

141. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene

142. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-difluoromethylbenzene

143. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene

144. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-fluoromethylbenzene

145. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

146. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethoxybenzene

147. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-fluoromethylbenzene

148. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-trifluoromethylbenzene

149. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene

150. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene

151. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-difluoromethoxybenzene

152. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene

153. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

154. (E)-(trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

155. (E)-(trans-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)cyclohexyl)-4-trifluoromethylbenzene

156. (E)-(trans-4-(trans-4-(7-fluoro-2-heptenyl)cyclohexyl)cyclohexyl)-4-difluoromethylbenzene

157. (E)-(trans-4-(trans-4-(7-fluoro-2-heptenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene

158. (E)-(trans-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)cyclohexyl)-3,4-difluoro-5-trifluoromethoxybenzene

159. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-difluoromethylbenzene

160. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-trifluoromethylbenzene

161. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-trifluoromethoxybenzene

162. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene

163. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-difluoromethoxybenzene

164. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene

165. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

166. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-trifluoromethoxybenzene

167. (E)-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene

168. (E)-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-fluoromethylbenzene

169. (E)-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

170. (E)-(trans-4-(2-(trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)cyclohexyl)-4-trifluoromethoxybenzene

171. (E)-(trans-4-(2-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene

172. (E)-(trans-4-(2-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

173. (E)-(trans-4-(2-(trans-4-(7-fluoroheptenyl)cyclohexyl)ethyl)cyclohexyl)-4-trifluoromethylbenzene

174. (E)-(trans-4-(2-(trans-4-(7-fluoroheptenyl)cyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-difluoromethylbenzene

175. (E)-(trans-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-trifluoromethoxybenzene

Example 6

Preparation of (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,4-difluorobenzene (a compound of No. 176 of the formula (1), wherein Q represents CFH₂ ; l represent 1; m and o both represent 0; p represents 1; A₂ and A₃ both represent trans-1,4-cyclohexylene group; ring B represents 2-fluoro-1,4-phenylene group (L₁ =F); Z₂ and Z₃ both represent covalent bond; L₃ represents F; and L₂ represents H.

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (13.8 g, 34.1 millimols) with THF (60 ml) was cooled down to -20° C., followed by adding t-BuOK (3.5 g, 34.1 millimols) to the mixture, stirring for one hour, dropwise adding to the mixture, a THF (120 ml) solution of trans-4-(trans-4-(3,4-difluorophenyl)cyclohexyl)cyclohexanecarbaldehyde (9.5 g, 31.0 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 2, to obtain raw (trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,4-difluorobenzene (9.2 g).

This raw product (9.2 g, 25.4 millimols) was mixed with sodium benzenesulfinate dihydrate (7.9 g, 39.4 millimols), 6N-hydrochloric acid (6.6 ml, 39.4 millimols) and a mixed solvent of toluene/ethanol (1/1) (50 ml), followed by heating the mixture under reflux for 12 hours, and treating the reaction product in the same manner as in Example 2, to obtain raw (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,4-difluorobenzene (9.1 g). This product was recrystallized from a mixed solvent of ethyl acetate/heptane (3/7), to obtain the captioned product (4.9 g, yield: 45.0%).

The following compounds (No. 177 to No. 203) were prepared according to Example 6:

No.

177. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-fluorobenzene

178. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-bromobenzene

179. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-chlorobenzene

180. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene

181. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-chlorobenzene

182. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-chlorobenzene

183. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-fluorobenzene

184. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-3,4-difluorobenzene

185. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene

186. (E)-(trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene

187. (E)-(trans-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene

188. (E)-(trans-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene

189. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-fluorobenzene

190. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-bromobenzene

191. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-chlorobenzene

192. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene

193. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3-fluoro-4-chlorobenzene

194. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene

195. (E)-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene

196. (E)-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-chlorobenzene

197. (E)-(trans-4-(2-trans-4-(5-fluoro-2-pentenyl)cyclohexyl)ethyl)cyclohexyl)-3,4-difluorobenzene

198. (E)-(trans-4-(2-trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)cyclohexyl)-4-fluorobenzene

199. (E)-(trans-4-(2-(trans-4-(6-fluoro-2-hexenyl)cyclohexenyl)ethyl)cyclohexyl)-3-fluoro-4-chlorobenzene

200. (E)-(trans-4-(2-(trans-4-(6-fluoro-3-hexenyl)cyclohexenyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene

201. (E)-(trans-4-(2-(trans-4-(7-fluoroheptyl)cyclohexyl)ethyl)cyclohexyl)-4-chlorobenzene

202. (E)-(trans-4-(2-(trans-4-(7-fluoro-2-heptenyl)cyclohexyl)ethyl)cyclohexyl)-3,4,5-trifluorobenzene

203. (E)-(trans-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)cyclohexyl)-3,5-difluoro-4-chlorobenzene

Example 7

Preparation of (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-ethylbenzene (a compound of No. 204 of the formula (1) wherein Q represents CFH₂ ; l represents 1; m and o both represent 0; p represents 1; A₂ and A₃ both represent trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₂ and Z₃ both represent covalent bond; L₁ and L₂ both represent H; and L₃ represents C₂ H₅.

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (13.4 g, 33.2 millimols) with THF (50 ml) was cooled down to -20° C., followed by adding t-BuOK (3.7 g, 33.2 millimols) to the mixture, stirring for one hour, dropwise adding to the mixture, a THF (90 ml) solution of trans-4-(trans-4-(4-ethylphenyl)cyclohexyl)cyclohexanecarbaldehyde (9.0 g, 30.2 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 2 except that the quantity of ethyl acetate used for extraction was made 400 ml, to obtain raw (trans-4-(trans-4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-ethylbenzene (9.1 g).

This raw product (9.1 g, 26.6 millimols) was mixed with sodium benzenesulfinate dihydrate (8.0 g, 39.8 millimols), 6N-hydrochloric acid and a mixed solvent of toluene/ethanol (1/1) (50 ml), followed by heating the mixture under reflux for 20 hours, and treating it in the same manner as in Example 2 except that toluene as an effluent was made heptane, to obtain raw (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-ethylbenzene (9.1 g). This product was recrystallized from a mixed solvent of ethyl acetate/heptane (2/8), to obtain the captioned compound (1.8 g, yield: 17.5%).

The following compounds (No. 205 to No. 231) were prepared according to the process of Example 7:

No.

205. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-propylbenzene

206. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-butylbenzene

207. (E)-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-(trans-4-propylcyclohexyl)benzene

Cr room temperature or lower S_(B) 159.5-159.6N 176.1-176.2 I_(so)

208. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-heptylbenzene

209. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-ethoxybenzene

210. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-pentyloxybenzene

211. (E)-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-methoxymethylbenzene

212. (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-(trans-4-butylcyclohexyl)biphenyl

Cr 210.4-210.9N 241.2-243.3 I_(so)

213. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-ethylbenzene

214. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-ethoxybenzene

215. (E)-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)-4-methoxymethylbenzene

216. (E)-(trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)-4-propylbenzene

217. (E)-(trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)-4-heptylbenzene

218. (E)-(trans-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)cyclohexyl)-4-ethylbenzene

219. (E)-(trans-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)cyclohexyl)-4-propoxybenzene

220. (E)-(trans-4-(trans-4-(7-fluoroheptenyl)cyclohexyl)cyclohexyl)-4-methylbenzene

221. (E)-(trans-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)cyclohexyl)-4-ethoxybenzene

222. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-propylbenzene

223. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-pentylbenzene

224. (E)-(trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexyl)-4-heptylbenzene

225. (E)-(trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexyl)-4-ethylbenzene

226. (E)-(trans-4-(2-(trans-4-(5-fluoro-2-pentenyl)cyclohexyl)ethyl)cyclohexyl)-4-propoxybenzene

227. (E)-(trans-4-(2-(trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)cyclohexyl)-4-methoxypropylbenzene

228. (E)-(trans-4-(2-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)ethyl)cyclohexyl)-4-methoxymethylbenzene

229. (E)-(trans-4-(2-(trans-4-(7-fluoro-2-heptenyl)cyclohexyl)ethyl)cyclohexyl)-4-butylbenzene

230. (E)-(trans-4-(2-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)ethyl)cyclohexyl)-4-pentylbenzene

231. (E)-(trans-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)cyclohexyl)-4-methylbenzene

Example 8

Preparation of (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)benzonitrile (a compound of No. 232 of the formula (1) wherein Q represents CFH₂ ; l represents 1; l, m and o each represents 0; A₃ represents trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₃ represents --(CH₂)₂ --; L₁ and L₂ both represent H; and L₃ represents CN)

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (14.7 g, 36.5 millimols) with THF (60 ml) was cooled down to -20° C., followed by adding t-BuOK (4.1 g, 36.5 millimols) to the mixture, stirring for one hour, dropwise adding to the mixture, a THF (50 ml) solution of trans-4-(2-(4-cyanophenyl)ethyl)cyclohexanecarbaldehyde (9.0 g, 30.2 millimols so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the product in the same manner as in Example 1 except that the quantity used for extraction was made 200 ml, to obtain raw 4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)benzonitrile (8.1 g).

This raw product (8.1 g, 28.4 millimols) was mixed with sodium benzenesulfinate dihydrate (8.5 g, 42.6 millimols), 6N-hydrochloric acid (7.1 ml, 42.6 millimols), and ethanol (30 ml), followed by heating the mixture under reflux for 12 hours, and treating the product in the same manner as in Example 1 except that the quantity of ethyl acetate used for extraction was made 150 ml, to obtain raw (E)-4-(2-trans-4-(4-fluorobutenyl)cyclohexyl)ethyl-benzonitrile (7.8 g). This product was recrystallized from ethanol, to obtain the captioned compound (1.3 g, yield: 13.7%).

The following compounds (No. 233 to No. 259) were prepared according to the process of Example 8:

No.

233. (E)-(2-trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-fluorobenzene

234. (E)-(2-trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-difluoromethylbenzene

235. (E)-(2-trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-trifluoromethoxybenzene

236. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3,4-difluorobenzene

237. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3-fluoro-4-difluoromethylbenzene

238. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3-fluoro-4-trifluoromethoxybenzene

239. (E)-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-2-fluorobenzonitrile

240. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene

241. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethylbenzene

242. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-3,5-difluoro-4-difluoromethoxybenzene

243. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-propylbenzene

244. (E)-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-heptylbenzene

245. (E)-4-(2-trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)benzonitrile

246. (E)-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4-difluoromethoxybenzene

247. (E)-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene

248. (E)-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethoxybenzene

249. (E)-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4-ethylbenzene

250. (E)-4-(2-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)ethyl)benzonitrile

251. (E)-(2-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene

252. (E)-4-(2-trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)benzonitrile

253. (E)-(2-(trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)-3,5-difluoro-4-difluoromethylbenzene

254. (E)-(2-(trans-4-(6-fluorohexenyl)cyclohexyl)ethyl)-4-propoxybenzene

255. (E)-4-(2-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)ethyl)benzonitrile

256. (E)-4-(2-(trans-4-(7-fluoroheptenyl)cyclohexyl)ethyl)benzonitrile

257. (E)-(2-trans-4-(7-fluoroheptenyl)cyclohexyl)ethyl)-3-fluoro-4-fluoromethylbenzene

258. (E)-(2-(trans-4-(7-fluoroheptenyl)cyclohexyl)ethyl)-4-butylbenzene

259. (E)-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)benzonitrile

Example 9

Preparation of (E)-4-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile (a compound No. 260 of the formula (1) wherein Q represents CFH₂ ; l represents 1; l, m and o each represent 0; p represents 1; A₂ and A₃ both represent trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₂ represents covalent bond; Z₃ represents --(CH₂)₂ --; L₁ and L₂ both represent H; and L₃ represents CN.

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (15.1 g, 37.4 millimols) with THF (70 ml) was cooled down to -20° C., followed by adding t-BuOK (4.2 g, 37.4 millimols) to the mixture, stirring for one hour, dropwise adding to the mixture, a THF (100 ml) solution of trans-4-(trans-4-(2-(4-cyanophenyl)ethyl)cyclohexyl)cyclohexanecarbaldehyde (11.0 g, 34.0 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 2, except that the quantity of ethyl acetate was made 500 ml, to obtain raw 4-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile (11.3 g).

This raw product (11.3 g, 30.7 millimols) was mixed with sodium benzenesulfinate dihydrate (9.2 g, 46.1 millimols), 6N-hydrochloric acid (7.7 ml, 46.1 millimols) and a mixed solvent of toluene/ethanol (1/1) (70 ml), followed by heating the mixture under reflux for 16 hours, and treating the reaction product in the same manner as in Example 2, to obtain raw (E)-4-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile (11.0 g). This product was recrystallized from a mixed solvent of ethyl acetate/heptane (2/8), to obtain the captioned compound (4.8 g, yield: 38.4%).

Cr 105.9-106.6N 197.2-198.0 I_(so)

The following compounds (No. 261 to No. 295) were prepared according to the process of Example 9:

No.

261. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-fluorobenzene

262. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-chlorobenzene

263. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-bromobenzene

264. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-trifluoromethylbenzene

265. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-difluoromethoxybenzene

266. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,4-difluorobenzene

267. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3-fluoro-4-chlorobenzene

268. (E)-4-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-2-fluorobenzonitrile

269. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3-fluoro-4-fluoromethylbenzene

270. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3-fluoro-4-trifluoromethylbenzene

271. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3-fluoro-4-trifluoromethoxybenzene

272. (E)-(2-trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene

273. (E)-(2-trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-chlorobenzene

274. (E)-4-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-2,6-difluorobenzonitrile

275. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-difluoromethylbenzene

276. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethylbenzene

277. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethoxybenzene

278. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-propylbenzene

279. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-propoxymethylbenzene

280. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-pentylbenzene

281. (E)-(2-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)ethyl)-4-hexyloxybenzene

282. (E)-4-(2-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile

283. (E)-(2-trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)ethyl)-4-fluoromethylbenzene

284. (E)-(2-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)ethyl)-3-fluoro-4-difluoromethoxybenzene

285. (E)-(2-(trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)ethyl)-3,4,5-trifluorobenzene

286. (E)-(2-trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethylbenzene

287. (E)-(2-trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexyl)ethyl)-4-ethylbenzene

288. (E)-(2-trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)ethyl)-3,4-difluorobenzene

289. (E)-(2-(trans-4-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethylbenzene

290. (E)-4-(2-trans-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile

291. (E)-(2-(trans-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)cyclohexyl)ethyl)-4-fluorobenzene

292. (E)-(2-(trans-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoro-4-trifluoromethylbenzene

293. (E)-4-(2-(trans-4-(trans-4-(7-fluoroheptenyl)cyclohexyl)cyclohexyl)ethyl)benzonitrile

294. (E)-(2-(trans-4-(trans-4-(7-fluoroheptenyl)cyclohexyl)cyclohexyl)ethyl)-3,5-difluoromethoxybenzene

295. (E)-(2-(trans-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)cyclohexyl)ethyl)-4-methylbenzene

Example 10

Preparation of (E)-4-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)benzonitrile (a compound of No. 296 of the formula (1) wherein Q represents CF₃ ; Z represents 1; m, o and p all represent 0; A₃ represents trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₃ represent covalent bond; L₁ and L₂ both represent H; and L₃ represents CN.

A mixture of (3,3,3-trifluoropropyl)triphenylphosphonium bromide (9.0 g, 20.5 millimols) with THF (45 ml) was cooled down to -20° C., followed by adding t-BuOK (2.5 g, 22.5 millimols) to the mixture, stirring for 30 minutes, dropwise adding to the mixture, a THF (50 ml) solution of trans-4-(4-cyanophenyl)cyclohexanecarbaldehyde (4.8 g, 22.5 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the product in the same manner as in Example 1, to obtain raw 4-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)benzonitrile (5.1 g).

This raw product (5.1 g, 18.4 millimols) was mixed with sodium benzenesulfinate dihydride (5.5 g, 27.6 millimols), 6N-hydrochloric acid (4.6 ml, 27.6 millimols) and ethanol (30 ml), followed by heating the mixture under reflux for 12 hours, and treating the reaction product in the same manner as in Example 1, to obtain raw (E)-4-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)benzonitrile (4.9 g). This product was recrystallized from ethanol, to obtain the captioned compound (0.8 g, yield: 13.9%).

Cr 45.3-46.1 I_(so)

The following compounds (No. 297 to No. 323) were prepared according to the process of Example 10:

297. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-4-bromobenzene

298. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-4-fluoromethylbenzene

299. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3,4-difluorobenzene

300. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3-fluoro-4-chlorobenzene

301. (E)-4-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-2-fluorobenzonitrile

302. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3-fluoro-4-difluoromethylbenzene

303. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3,4,5-trifluorobenzene

304. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3,5-difluoro-4-chlorobenzene

305. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3,5-difluoro-4-difluoromethylbenzene

306. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

307. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-3,5-difluoro-4-trifluoromethoxybenzene

308. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-4-propylbenzene

309. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-4-propoxymethylbenzene

310. (E)-(trans-4-(4,4,4-trifluorobutenyl)cyclohexyl)-4-heptylbenzene

311. (E)-(trans-4-(5,5,5-trifluoropentenyl)cyclohexyl)-4-difluoromethoxybenzene

312. (E)-4-(trans-4-(5,5,5-trifluoropentenyl)cyclohexyl)benzonitrile

Cr 47.7-48.7 (N 17.5) I_(so)

313. (E)-(trans-4-(5,5,5-trifluoropentenyl)cyclohexyl)-3,4,5-trifluorobenzene

314. (E)-(trans-4-(5,5,5-trifluoropentenyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

315. (E)-(trans-4-(5,5,5-trifluoro-2-pentenyl)cyclohexyl)-4-butylbenzene

316. (E)-4-(trans-4-(5,5,5-trifluoro-3-pentenyl)cyclohexyl)-2-fluorobenzonitrile

317. (E)-(trans-4-(5,5,5-trifluoro-3-pentenyl)cyclohexyl)-3,5-difluoro-4-difluoromethoxybenzene

318. (E)-(trans-4-(6,6,6-trifluoro-2-hexenyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

319. (E)-(trans-4-(6,6,6-trifluoro-3-hexenyl)cyclohexyl)-3-fluoro-4-chlorobenzene

320. (E)-(trans-4-(6,6,6-trifluoro-3-hexenyl)cyclohexyl)-3,5-difluoro-4-fluoromethylbenzene

321. (E)-4-(trans-4-(7,7,7-trifluoro-3-heptenyl)cyclohexyl)benzonitrile

Cr 48.4-49.7 (N 28.5) I_(so)

322. (E)-(trans-4-(7,7,7-trifluoro-3-heptenyl)cyclohexyl)-3,5-difluoro-4-trifluoromethoxybenzene

323. (E)-(trans-4-(7,7,7-trifluoro-4-heptenyl)cyclohexyl)-4-ethylbenzene

Example 11

Preparation of (E)-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)benzonitrile (a compound of No. 324 of the formula (1), wherein Q represents CF₂ H; l represents 1, m, o and p each represent 0; A₃ represents trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₃ represents covalent bond; L₁ and L₂ both represent H; and L₃ represents CN.

A mixture of (2-(1,3-dioxan-2-yl)ethyl)triphenylphosphonium bromide (17.4 g, 38.0 millimols) with THF (100 ml) was cooled down to -20° C., followed by adding t-BuOK (4.5 g, 39.9 millimols) to the mixture, stirring for 30 minutes, dropwise adding to the mixture, a THF (35 ml) solution of trans-4-(4-cyanophenyl)cyclohexanecarbaldehyde (7.7 g, 36.1 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 3, to obtain raw 4-(trans-4-(3-(1,3-dioxan-2-yl) propenyl)cyclohexyl)benzonitrile (10.3 g).

This raw product (10.3 g, 33.2 millimols) was mixed with 6N-hydrochloric acid (11.1 ml, 66.4 millimols) and toluene (50 ml), followed by heating the mixture under reflux for 6 hours, and treating the reaction product in the same manner as in Example 3 except that toluene used for eluent was made ethyl acetate (150 ml), to obtain raw 4-(trans-4-(3-formylpropenyl)cyclohexyl)benzonitrile (7.2 g).

The thus obtained raw product (7.2 g, 28.4 millimols) was further mixed with DAST (13.8 g, 85.3 millimols) and dichloromethane (35 ml), followed by stirring the mixture at room temperature for 24 hours, pouring the reaction product in ice water (150 ml), extracting it with ethyl acetate (150 ml), washing the resulting organic layer once with a saturated potassium carbonate aqueous solution, and twice with water, drying over anhydrous magnesium sulfate, distilling off the solvent under reduced pressure and subjecting the residue to silica gel column chromatography (eluent: toluene), to obtain raw 4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)benzonitrile (3.7 g), mixing this raw product (3.7 g, 13.8 millimols) with sodium benzenesulfinate dihydrate (4.2 g, 20.8 millimols), 6N-hydrochloric acid (3.5 ml, 20.8 millimols) and ethanol (20 ml), heating the mixture under reflux for 12 hours, adding water (100 ml) to the reaction product after completion of the reaction, extracting the mixture with ethyl acetate (200 ml), washing the resulting organic layer three times with a saturated sodium carbonate aqueous solution and three times with water, drying over anhydrous sodium sulfate, distilling off the solvent under reduced pressure and subjecting the residue to silica gel column chromatography (eluent: toluene), to obtain raw (E)-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)benzonitrile (3.8 g). This product was recrystallized from ethanol, to obtain the captioned compound (1.3 g, yield: 12.7%).

The following compounds (No. 325 to No. 350) were prepared according to the process of Example 11:

No.

325. (E)-(trans-4-(3,3-difluoropropenyl)cyclohexyl)-3,4,5-trifluorobenzene

Cr 3.7 I_(so)

326. (E)-(trans-4-(3,3-difluoropropenyl)cyclohexyl)-4-propylbenzene

Cr 35.3-37.2 I_(so)

327. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-4-difluoromethylbenzene

328. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-4-trifluoromethoxybenzene

329. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-4-propylbenzene

330. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-4-propoxymethylbenzene

331. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-4-heptylbenzene

332. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3,4-difluorobenzene

333. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3-fluoro-4-chlorobenzene

334. (E)-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-2-fluorobenzonitrile

335. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3-fluoro-4-fluoromethylbenzene

336. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene

337. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3-fluoro-4-trifluoromethoxybenzene

338. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

339. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3,5-difluoro-4-difluoromethoxybenzene

340. (E)-(trans-4-(4,4-difluorobutenyl)cyclohexyl)-3,4,5-trifluorobenzene

341. (E)-4-(trans-4-(5,5-difluoropentenyl)cyclohexyl)benzonitrile

342. (E)-(trans-4-(5,5-difluoropentenyl)cyclohexyl)-4-trifluoromethoxybenzene

343. (E)-(trans-4-(5,5-difluoropentenyl)cyclohexyl)-3-fluoro-4-trifluoromethylbenzene

344. (E)-(trans-4-(5,5-difluoropentenyl)cyclohexyl)-3-fluoro-4-difluoromethoxybenzene

345. (E)-4-(trans-4-(5,5-difluoro-3-pentenyl)cyclohexyl)benzonitrile

346. (E)-(trans-4-(5,5-difluoro-3-pentenyl)cyclohexyl)-4-trifluoromethylbenzene

347. (E)-(trans-4-(5,5-difluoro-3-pentenyl)cyclohexyl)-4-difluoromethoxybenzene

348. (E)-4-(trans-4-(6,6-difluoro-2-hexenyl)cyclohexyl)benzonitrile

349. (E)-4-(trans-4-(7,7-difluoro-4-heptenyl)cyclohexyl)benzonitrile

350. (E)-(trans-4-(7,7-difluoro-4-heptenyl)cyclohexyl)-4-ethylbenzene

Example 12

Preparation of (E)-4-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (a compound No. 351 of the formula (1) wherein Q represents CF₂ H; l represents 1; m and o both represent 0; p represents 1; A₂ and A₃ both represent trans-1,4-cyclohexylene group; ring B represents 1,4-phenylene group; Z₃ represents covalent bond; L₁ and L₂ both represent H and L₃ represents CN.

A mixture of (2-(1,3-dioxan-2-yl)ethyl)triphenylphosphonium bromide (25.0 g, 54.7 millimols) with THF (150 ml) was cooled down to -20° C., followed by adding t-BuOK (6.1 g, 54.7 millimols) to the mixture, stirring for 30 minutes, dropwise adding to the mixture, a THF (80 ml) solution of trans-4-(trans-4-(4-cyanophenyl)cyclohexyl)cyclohexanecarbaldehyde (14.4 g, 49.8 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 2, except that the quantity of ethyl acetate used for extraction was made 400 ml, to obtain raw 4-(trans-4-(trans-4-(3-(1,3-dioxan-2-yl)propenyl)cyclohexyl)cyclohexyl)benzonitrile (17.5 g).

This raw product (17.5 g, 44.5 millimols) was mixed with 6N-hydrochloric acid (14.8 ml, 88.9 millimols) and toluene (80 ml), followed by heating the mixture under reflux for 5 hours, and treating the product in the same manner as in Example 2 except that the quantity of water added to the reaction product was made 150 ml and the quantity of ethyl acetate used for the extraction was made 150 ml, to obtain raw 4-(trans-4-(trans-4-(3-formylpropenyl)cyclohexyl)cyclohexyl)benzonitrile (12.9 g).

The thus obtained raw product (12.9 g, 38.5 millimols) was further mixed with DAST (18.6 g, 115.5 millimols) and dichloromethane (60 ml), followed by stirring the mixture at room temperature for 24 hours, pouring the reaction product in ice water (200 ml), extracting with ethyl acetate (300 ml), washing the resulting organic layer once with a saturated potassium carbonate aqueous solution and twice with water, drying over anhydrous magnesium sulfate, distilling off the solvent under reduced pressure and subjecting the residue to silica gel column chromatography (eluent: toluene), to obtain raw 4-(trans-4-trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (5.3 g). This raw product (5.3 g, 14.8 millimols) was mixed with sodium benzenesulfinate dihydrate (4.5 g, 22.2 millimols), 6N-hydrochloric acid (3.7 ml, 22.2 millimols) and a mixed solvent of toluene/ethanol (1/1) (40 ml), followed by refluxing the mixture for 12 hours, adding water (100 ml) to the reaction product, extracting with ethyl acetate (200 ml), washing the resulting organic layer three times with a saturated sodium carbonate aqueous solution and three times with water, drying over anhydrous sodium sulfate, distilling off the solvent under reduced pressure and subjecting the residue to silica gel column chromatography (effluent: toluene), to obtain raw (E)-4-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (3.8 g). This product was recrystallized from a mixed solvent of ethyl acetate/heptane (3/7), to obtain the captioned compound (1.8 g, yield: 10.3%).

The following compounds (No. 352 to No. 372) were prepared according to the process of Example 12:

No.

352. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-4-bromobenzene

353. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-4-difluoromethylbenzene

354. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-4-trifluoromethoxybenzene

355. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-chlorobenzene

356. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-2-fluorobenzonitrile

357. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-difluoromethoxybenzene

358. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-3,4,5-trifluorobenzene

359. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-4-propylbenzene

360. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-4-methoxypentylbenzene

361. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

362. (E)-(trans-4-(trans-4-(4,4-difluorobutenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-difluoromethoxybenzene

363. (E)-(trans-4-(trans-4-(5,5-difluoropentenyl)cyclohexyl)cyclohexyl)-3-fluoro-4-difluoromethylbenzene

364. (E)-(trans-4-(trans-4-(5,5-difluoropentenyl)cyclohexyl)cylcohexyl)-3,4,5-trifluorobenzene

365. (E)-(trans-4-(trans-4-(5,5-difluoropentenyl)cyclohexyl)cyclohexyl)-3,5-difluoro-4-trifluoromethylbenzene

366. (E)-(trans-4-(trans-4-(5,5-difluoro-3-pentenyl)cyclohexyl)cyclohexyl)-4-fluoromethylbenzene

367. (E)-(trans-4-(trans-4-(5,5-difluoro-3-pentenyl)cyclohexyl)cyclohexyl)-4-butylbenzene

368. (E)-(trans-4-(trans-4-(6,6-difluoro-2-hexenyl)cyclohexyl)cyclohexenyl)-3,5-difluoro-4-trifluoromethoxybenzene

369. (E)-(trans-4-(trans-4-(6,6-difluoro-3-hexenyl)cyclohexyl)cyclohexyl)-4-methoxymethylbenzene

370. (E)-(trans-4-(trans-4-(7,7-difluoro-3-heptenyl)cyclohexyl)cyclohexyl)-4-difluoromethoxybenzene

371. (E)-(trans-4-(trans-4-(7,7-difluoro-3-heptenyl)cyclohexyl)cyclohexyl)-3,4-difluorobenzene

372. (E)-(trans-4-(trans-4-(7,7-difluoro-4-heptenyl)cyclohexyl)cyclohexyl)-4-methylbenzene

Example 13

Preparation of (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-pentylcylohexane (a compound No. 373 of the formula (1), wherein Q represents CFH₂ ; l represents 1; m, o and p each represent 0; A₃ and ring B both represent trans-1,4-cyclohexylene group; Z₃ represents covalent bond; L₁ and L₂ both represent H; and L₃ represents C₅ H₁₁.

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (6.9 g, 17.1 millimols) with THF (40 ml) was cooled down to -20° C., followed by adding t-BuOK (1.9 g, 17.1 millimols) to the mixture, stirring the mixture for 30 minutes, dropwise adding to the mixture, a THF (30 ml) solution of trans-4-(trans-4-pentylcyclohexyl)cyclohexanecarbaldehyde (4.1 g, 15.5 millimols) so as to keep the temperature at -20° C., stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 1, except that the quantity of ethyl acetate used for extraction was made 150 ml, to obtain raw trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-pentylcyclohexane (4.2 g).

This raw product (4.2 g, 13.6 millimols) was mixed with sodium benzenesulfinate dihydrate (4.1 g, 20.4 millimols), 6N-hydrochloric acid (3.4 ml, 20.4 millimols) and ethanol (30 ml), followed by heating the mixture under reflux for 18 hours, and treating the reaction product in the same manner as in Example 1, except that the quantity of ethylacetate used for extraction was made 150 ml and toluene as eluent was made heptane, to obtain raw (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-pentylcyclohexane (4.0 g). This product was recrystallized from ethanol to obtain the captioned compound (1.0 g, yield: 20.8%).

Cr room temperature or lower S_(B) 108.5-108.8 I_(so)

The following compounds (No. 374 to No. 425) were prepared according to the process of Example 13:

No.

374. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-methylcyclohexane

375. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-ethylcyclohexane

376. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-propylcyclohexane

377. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-butylcyclohexane

378. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-nonylcyclohexane

379. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-hexylcyclohexane

380. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-heptylcyclohexane

381. (E)-trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexanecarbonitrile

382. (E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-propoxycyclohexane

383. (E)-trans-(trans-4-(5-fluoropentenyl)cyclohexyl)-4-propylcyclohexane

384. (E)-trans-(trans-4-(5-fluoropentenyl)cyclohexyl)-4-pentylcyclohexane

385. (E)-trans-4-(trans-4-(5-fluoropentenyl)cyclohexyl)cyclohexanecarbonitrile

386. (E)-trans-(trans-4-(5-fluoro-3-pentenyl)cyclohexyl)-4-ethoxyethylcyclohexane

387. (E)-trans-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)-4-ethylcyclohexane

388. (E)-trans-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)-4-butylcyclohexane

389. (E)-trans-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexenyl)cyclohexanecarbonitrile

390. (E)-trans-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)-4-ethylcyclohexane

391. (E)-trans-4-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)cyclohexanecarbonitrile

392. (E)-trans-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)-4-ethoxycyclohexane

393. (E)-trans-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-propylcyclohexane

Cr room temperature or lower S_(B) 88.9-89.2 I_(so)

394. (E)-trans-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)-4-pentylcyclohexane

395. (E)-trans-4-(2-(trans-4-(4-fluorobutenyl)cyclohexyl)ethyl)cyclohexanecarbonitrile

396. (E)-trans-(2-trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4-propylcyclohexane

397. (E)-trans-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4-butylcyclohexane

398. (E)-trans-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)-4-ethoxycyclohexane

399. (E)-trans-4-(2-(trans-4-(5-fluoropentenyl)cyclohexyl)ethyl)cyclohexanecarbonitrile

400. (E)-trans-(2-trans-4-(5-fluoro-3-pentenyl)cyclohexyl)ethyl)-4-propoxymethylcyclohexane

401. (E)-trans-(2-trans-4-(6-fluoro-2-hexenyl)cyclohexyl)ethyl)-4-methoxymethylcyclohexane

402. (E)-trans-(2-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)ethyl)-4-methoxyethylcyclohexane

403. (E)-trans-4-(2-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)ethyl)cyclohexanecarbonitrile

404. (E)-trans-(2-(trans-4-(7-fluoro-3-heptenyl)cyclohexenyl)ethyl)-4-methoxycyclohexane

405. (E)-trans-4-(2-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)ethyl)cyclohexanecarbonitrile

406. (E)-trans-4-(2-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)ethyl)-4-ethylcyclohexane

407. (E)-trans-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-ethylcyclohexane

408. (E)-trans-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-propylcyclohexane

409. (E)-trans-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-butylcyclohexane

410. (E)-trans-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-butoxycyclohexane

411. (E)-trans-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)-4-heptylcyclohexane

412. (E)-trans-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)cyclohexanecarbonitrile

413. (E)-trans-(trans-4-(trans-4-(5-fluoroheptenyl)cyclohexyl)cyclohexyl)-4-methoxymethylcyclohexane

414. (E)-trans-(trans-4-(trans-4-(5-fluoroheptenyl)cyclohexyl)cyclohexyl)-4-pentylcyclohexane

415. (E)-trans-4-(trans-4-(trans-4-(5-fluoroheptenyl)cyclohexyl)cyclohexyl)cyclohexanecarbonitrile

416. (E)-trans-(trans-4-(trans-4-(5-fluoro-3-heptenyl)cyclohexyl)cyclohexyl)-4-propoxycyclohexane

417. (E)-trans-4-(trans-4-(trans-4-(5-fluoro-3-heptenyl)cyclohexyl)cyclohexyl)cyclohexanecarbonitrile

418. (E)-trans-(trans-4-(trans-4-(6-fluoro-2-hexenyl)cyclohexyl)cyclohexyl)-4-methoxyethylcyclohexane

419. (E)-trans-(trans-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)cyclohexyl)-4-propylcyclohexane

420. (E)-trans-4-(trans-4-(trans-4-(6-fluoro-3-hexenyl)cyclohexyl)cyclohexyl)cyclohexanecarbonitrile

421. (E)-trans-(trans-4-(trans-4-(7-fluoroheptenyl)cyclohexyl)cyclohexyl)-4-methoxycyclohexane

422. (E)-trans-4-(trans-4-(trans-4-(7-fluoroheptenyl)cyclohexyl)cyclohexyl)cyclohexanecarbonitrile

423. (E)-trans-(trans-4-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)cyclohexyl)-4-butylcyclohexane

424. (E)-trans-4-(trans-4-(trans-4-(7-fluoro-3-heptenyl)cyclohexyl)cyclohexyl)cyclohexanecarbonitrile

425. (E)-trans-(trans-4-(trans-4-(7-fluoro-4-heptenyl)cyclohexyl)cyclohexyl)-4-methylcyclohexane

Examples using the compound of the present invention as a component of the liquid crystal composition will be described hereinafter. In the respective use Examples, NI represents clearing point (° C.); Δε represents a di-electric anisotropy value; Δn represents an optical anisotropy value; η represents a rotatory viscosity at 20° C. (cP); V₁₀ represents a threshold voltage (V); and K represents a ratio (K₃₃ /K₁₁) of bend elastic coefficient (K₃₃) to splay elastic coefficient (K₁₁) at 20° C.

Example 14 (Use Example 1)

A liquid crystal composition, ZLI-1132 made by Merck Company, consisting of liquid crystal compounds of cyanophenylcyclohexane group ((4-(trans-4-propylcyclohexyl)benzonitrile (24% by weight), 4-(trans-4-pentylcyclohexyl)benzonitrile (36% by weight), 4-(trans-4-heptylcyclohexyl)benzonitrile (25% by weight) and 4-(trans-4-pentylcyclohexyl)-4'-cyanobiphenyl (15% by weight)) has the following physical properties:

NI: 72.4, Δε: 11.0, Δn: 0.137, n: 27.0, V₁₀ : 1.78 in a cell thickness of 9 μm and K: 2.12.

With this composition (85% by weight) was mixed a compound of Example 1 (No. 1), (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)benzonitrile (15% by weight), to obtain a nematic liquid crystal composition. The values of the physical properties of this composition were as follows:

NI: 69.6, Δε: 11.6, Δn: 0.138, η: 28.9, V₁₀ : 1.68 in a cell thickness of 8.8 μm and K: 2.28.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 15 (Use Example 2)

With the above liquid crystal composition, ZLI-1132 (85% by weight), was mixed a compound of Example 2 (No. 35), (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-cyanobiphenyl (15% by weight), to obtain a nematic liquid crystal composition. The values of the physical properties of this composition were as follows:

NI: 91.0, Δε: 11.6, Δn: 0.155, η: 36.7, V₁₀ : 1.91 in a cell thickness of 8.8 μm and K: 2.50.

This composition was allowed to stand in a freezer of -20° C., but neither of deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 16 (Use Example 3)

A liquid crystal composition, ZLI-1083, made by Merck Company, consisting of liquid crystal compounds of cyanophenylcyclohexane group ((4-(trans-4-propylcyclohexyl)benzonitrile (30% by weight), 4-(trans-4-pentylcyclohexyl)benzonitrile (40% by weight) and 4-(trans-4-heptylcyclohexyl)benzonitrile (30% by weight)) has the following physical properties:

NI: 52.3, Δε: 10.7, Δn: 0.119, η: 21.7, V₁₀ : 1.60 in a cell thickness of 9 μm and K: 2.10.

With this composition (85% by weight) was mixed a compound of Example 3 (No. 72), (E)-4-(trans-4-(4-fluorobutenyl)cyclohexyl)-4'-chlorobiphenyl (15% by weight), to obtain a nematic liquid crystal composition. The values of the physical properties of this composition were as follows:

NI: 65.4, Δε: 10.7, Δn: 0.131, η: 25.1, V₁₀ : 1.66 in a cell thickness of 8.8 μm and K: 2.20.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 17 (Use Example 4)

With the above liquid crystal composition, ZLI-1132 (85% by weight) was mixed a compound of Example 13 (No. 373) ((E)-trans-(trans-4-(4-fluorobutenyl)cyclohexyl)-4-pentylcyclohexane) (15% by weight), to obtain a nematic liquid crystal composition. The values of the physical properties of this composition were as follows:

NI: 73.2, Δε: 9.5, Δn: 0.125, η: 23.5, V₁₀ : 1.74 in a cell thickness of 8.7 μm and K: 1.90.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 18 (Use Example 5)

The physical properties of the nematic liquid crystal composition of Composition example 21 were as follows:

NI: 106.4, Δε: 5.2, Δn: 0.107, η: 28.4 and V₁₀ : 2.28 in a cell thickness of 8.7 μm.

This composition was allowed in a freezer at -20° C., but neither deposition of cells nor smectic phase were observed even after 60 days lapsed.

Example 19 (Use Example 6)

The physical properties of the nematic liquid crystal composition of Composition example 22 were as follows:

NI: 105.6, Δε: 4.2, Δn: 0.120, η: 27.1 and V₁₀ : 2.57 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 20 (Use Example 7)

The physical properties of the nematic liquid crystal composition of Composition example 23 were as follows:

NI: 107.2, Δε: 5.2, Δn: 0.137, η: 26.1 and V₁₀ : 2.51 in a cell thickness of 8.8 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 21 (Use Example 8)

The physical properties of the nematic liquid crystal composition of Composition example 24 were as follows:

NI: 115.1, Δε: 4.6, Δn: 0.090, η: 26.2 and V₁₀ : 2.38 in a cell thickness of 8.7 μm.

This composition was allowed in a freezer at -20° C., but neither deposition nor smectic phase were observed even after 60 days lapsed.

Example 22 (Use Example 9)

The physical properties of the nematic liquid crystal composition of Composition example 25 were as follows:

NI: 57.9, Δε: 7.0, Δn: 0.082, η: 26.3 and V₁₀ : 1.44 in a cell thickness of 8.7 μm.

This composition was allowed to stand at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 23 (Use Example 10)

The physical properties of the nematic liquid crystal composition of Composition example 26 were as follows:

NI: 105.9, Δε: 9.4, Δn: 0.155, η: 29.7 and V₁₀ : 1.83 in a cell thickness of 8.8 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition nor smectic phase were observed even after 60 days lapsed.

Example 24 (Use Example 11)

The physical properties of the nematic liquid crystal composition of Composition example 27 were as follows:

NI: 90.7, Δε: 7.1, Δn: 0.154, η: 23.9 and V₁₀ : 2.05 in a cell thickness of 8.8 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 25 (Use Example 12)

The physical properties of the nematic liquid crystal composition of Composition example 28 were as follows:

NI: 70.9, Δε: 10.8, Δn: 0.145, η: 36.8 and V₁₀ : 1.37 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 26 (Use Example 13)

The physical properties of the nematic liquid crystal composition of Composition example 29 were as follows:

NI: 126.7, Δε: 6.4, Δn: 0.181, η: 42.2 and V₁₀ : 2.39 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 27 (Use Example 14)

The physical properties of the nematic liquid crystal composition of Composition example 30 were as follows:

NI: 106.6, Δε: 13.6, Δn: 0.138, η: 36.8 and V₁₀ : 1.50 in a cell thickness of 8.7 μm.

This composition was allowed in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 28 (Use Example 15)

The physical properties of the nematic liquid crystal composition of Composition example 31 were as follows:

NI: 86.8, Δε: 8.9, Δn: 0.134, η: 23.3 and V₁₀ : 1.86 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 29 (Use Example 16)

The physical properties of the nematic liquid crystal composition of Composition example 32 were as follows:

NI: 88.0, Δε: 8.6, Δn: 0.109, η: 33.1 and V₁₀ : 1.57 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 30 (Use Example 17)

The physical properties of the nematic liquid crystal composition of Composition example 33 were as follows:

NI: 79.7, Δε: 6.4, Δn: 0.154, η: 26.5 and V₁₀ : 1.76 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 31 (Use Example 18)

The physical properties of the nematic liquid crystal composition of Composition example 34 were as follows:

NI: 101.7, Δε: 8.0, Δn: 0.141, η: 44.8 and V₁₀ : 1.77 in a cell thickness of 8.8 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 32 (Use Example 19)

The physical properties of the nematic liquid crystal composition of Composition example 35 were as follows:

NI: 62.1, Δε: 29.0, Δn: 0.159, η: 69.6 and V₁₀ : 0.72 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Example 33 (Use Example 20)

The physical properties of the nematic liquid crystal composition of Composition example 36 were as follows:

NI: 114.2, Δε: 3.8, Δn: 0.095, η: 21.6 and V₁₀ : 2.86 in a cell thickness of 8.7 μm.

This composition was allowed to stand in a freezer at -20° C., but neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

Comparative Example 1 (Use Comparative Example 1)

With the above liquid crystal composition, ZLI-1132 (85% by weight) was mixed (E)-4-(trans-4-(butenyl)cyclohexyl)benzonitrile (Proc. 4th International Display Research Conference, San Diego, 231-234 (1984)), which has been said to have a large elastic constant, (15% by weight), to obtain a nematic liquid crystal composition.

The values of the physical properties of this composition were as follows:

NI: 69.1, Δε: 11.3, Δn: 0.137, η: 26.7 and V₁₀ : 1.55 in a cell thickness of 8.7 μm and K: 2.20.

This composition together with the liquid crystal composition of Example 14 were allowed to stand in a freezer at -20° C. and in the case of the former, deposition of crystals was observed in 20 days, but in the case of the latter, neither deposition of crystals nor smectic phase were observed even after 60 days lapsed.

(Effectiveness of the Invention)

As seen from the above description either of the compounds of the present invention, i.e. compounds having a fluoroalkenyl group introduced into the molecule, have a high elastic constant ratio (K₃₃ /K₁₁) and further, have an improved solubility thereof in other liquid crystal materials at low temperatures.

Thus, when the compounds of the present invention are used as a component of liquid crystal compositions, they have a characteristic of being superior in the solubility in other liquid crystal materials, and when the six-membered ring, substituent and/or bonding group thereof are suitably chosen, it is possible to provide a novel liquid crystal composition having desired physical properties. 

What we claim is:
 1. A liquid crystalline compound expressed by the formula (1) ##STR20## wherein Q represents CF₃ ; A₁, A₂ and A₃ each independently represent trans-1,4-cyclohexylene group, 1,4-phenylene group wherein one or more hydrogen atoms on its six-membered ring may be replaced by F, Cl or CN, pyridine-2,5-diyl group or 1,3-pyrimidine-2,5-diyl; ring B represents 1,4-phenylene group or trans-1,4-cyclohexylene group; Z₁, Z₂ and Z₃ each independently represent covalent bond, --CH═CH--, --C.tbd.C--, --OCO--, --COO--, --CH₂ O--, --OCH₂ --, --(CH₂)₂ -- or --(CH₂)₄ --; l and m each independently represent an integer of 0 to 5; o and p each independently represent 0 or 1; L₁ and L₂ each independently represent H, F or Cl; and L₃ represents a halogen atom, CN, CF₃, CF₂ H, CFH₂, OCF₃ or OCF₂ H.
 2. A liquid crystal composition containingas a first component, at least one of the liquid crystalline compounds set forth in claim 1, and also containing as a second component, at least one compound chosen from those expressed by the following formulas (2), (3) and (4): ##STR21## wherein R₁ represents an alkyl group of 1 to 10 carbon atoms; Y represents F, Cl, CF₃, OCF₃, OCF₂ H or an alkyl group of 1 to 10 carbon atoms; L₄, L₅, L₆ and L₇ each independently represent H or F; Z₄ and Z₅ each independently represent --(CH₂)₂ --, --CH═CH-- or a covalent bond; ring D represents a trans-1,4-cyclohexylene group or a 1,4-phenylene group; a represents 1 or 2; and b represents 0 or 1, and further containing as another second component, at least one compound chosen from those expressed by the following formulas (5), (6), (7), (8) and (9): ##STR22## wherein R₂ represents F, an alkyl group of 1 to 10 carbon atoms or an alkenyl group of 2 to 10 carbon atoms wherein optional methylene groups (--CH₂ --) may be replaced by oxygen atom (--O--), but two or more methylene groups should not be continuedly replaced by oxygen atom; Z₆ represents --(CH₂)₂ --, --COO-- or a covalent bond; L₈ and L₉ each independently represent H or F; E represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group or a 1,3-dioxane-2,5-diyl group; ring G represents a trans-1,4-cyclohexylene group or a 1,4-phenylene group; and c and d each independently represent 0 or 1, ##STR23## wherein R₃ represents an alkyl group of 1 to 10 carbon atoms; L₁₀ represents H or F; and e represents 0 or 1, ##STR24## wherein R₄ represents an alkyl group of 1 to 10 carbon atoms; I represents a trans-1,4-cyclohexylene group or a 1,4-phenylene group; L₁₁ represents H or F; Z₇ represents --COO-- or a covalent bond; Z₈ represents --COO-- or --C.tbd.C--; and f and g each independently represent 0 or 1,

    R.sub.5 --J--Z.sub.9 --K--R.sub.6                          ( 8)

wherein R₅ and R₆ each independently represent an alkyl group, an alkoxy group or an alkoxymethyl group each of 1 to 10 carbon atoms; J represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group or a 1,3-pyrimidine-2,5-diyl group; K represents a trans-1,4-cyclohexylene group or a 1,4-phenylene group; and Z₉ represents --C.tbd.C--, --COO--, --(CH₂)₂ -- or a covalent bond, ##STR25## wherein R₇ represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms; R₈ represents an alkyl group of 1 to 10 carbon atoms; wherein optional methylene groups (--CH₂ --) may be replaced by oxygen atom (--O--), but two or more methylene groups should not be continuedly replaced by oxygen atom; M represents a trans-1,4-cyclohexylene group or a 1,3-pyrimidine-2,5-diyl group; rings N and P each independently represent a trans-1,4-cyclohexylene group or a 1,4-phenylene group; Z₁₀ represents --COO--, --(CH₂)₂ --, --CH═CH-- or a covalent bond; Z₁₁ represents --C.tbd.C--, --COO-- or a covalent bond; h represents 0 or 1; and L₁₂ represents H or F.
 3. A liquid crystal composition containing at least one of the liquid crystalline compounds set forth in claim
 1. 4. A liquid crystal composition containing as a first component, at least one of the liquid crystalline compounds set forth in claim 1, and also containing as a second component, at least one compound chosen from those expressed by the following formulas (2), (3) or (4): ##STR26## wherein R₁ represents an alkyl group of 1 to 10 carbon atoms; Y represents F, Cl, CF₃, OCF₃, OCF₂ H or an alkyl group of 1 to 10 carbon atoms; L₄, L₅, L₆ and L₇ each independently represent H or F; Z₄ and Z₅ each independently represent --(CH₂)₂ --, --CH═CH-- or covalent bond; ring D represents trans-1,4-cyclohexylene group or 1,4-phenylene group; a represents 1 or 2; and b represents 0 or
 1. 5. A liquid crystal composition containing as a first component, at least one of the liquid crystalline compounds set forth in claim 1, and also containing as a second component, at least one compound chosen from those expressed by the following formulas (5), (6), (7), (8) and (9): ##STR27## wherein R₂ represents F, an alkyl group of 1 to 10 carbon atoms or an alkenyl group of 2 to 10 carbon atoms wherein optional methylene groups (--CH₂ --) may be replaced by oxygen atom (--O--), but two or more methylene groups should not be continuedly replaced by oxygen atom; Z₆ represents --(CH₂)₂ --, --COO-- or covalent bond; L₈ and L₉ each independently represent H or F; E represents trans-1,4-cyclohexylene group, 1,4-phenylene group or 1,3-dioxane-2,5-diyl group; ring G represents trans-1,4-cyclohexylene group or 1,4-phenylene group; and c and d each independently represent 0 or 1, ##STR28## wherein R₃ represents an alkyl group of 1 to 10 carbon atoms; L₁₀ represents H or F; and e represents 0 or 1, ##STR29## wherein R₄ represents an alkyl group of 1 to 10 carbon atoms; I represents trans-1,4-cyclohexylene group or 1,4-phenylene group; L₁₁ represents H or F; Z₇ represents --COO-- or covalent bond; Z₈ represents --COO-- or --C.tbd.C--; and f and g each independently represent 0 or 1,

    R.sub.5 --J--Z.sub.9 --K--R.sub.6                          ( 8)

wherein R₅ and R₆ each independently represent an alkyl group, an alkoxy group or an alkoxymethyl group each of 1 to 10 carbon atoms; J represents trans-1,4-cyclohexylene group, 1,4-phenylene group or 1,3-pyrimidine-2,5-diyl group; K represents trans-1,4-cyclohexylene group or 1,4-phenylene group; and Z₉ represents --C.tbd.C--, --COO--, --(CH₂)₂ -- or covalent bond, ##STR30## wherein R₇ represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms; R₈ represents an alkyl group of 1 to 10 carbon atoms; wherein optional methylene groups (--CH₂ --) may be replaced by oxygen atom (--O--), but two or more methylene groups should not be continuedly replaced by oxygen atom; M represents trans-1,4-cyclohexylene group or 1,3-pyrimidine-2,5-diyl group; rings N and P each independently represent trans-1,4-cyclohexylene group or 1,4-phenylene group; Z₁₀ represents --COO--, --(CH₂)₂ --, --CH═CH-- or covalent bond; Z₁₁ represents --C.tbd.C--, --COO-- or covalent bond; h represents 0 or 1; and L₁₂ represents H or F.
 6. A liquid crystal display element comprising a liquid crystal composition set forth in claim
 3. 7. A liquid crystal display element comprising a liquid crystal composition set forth in claim
 4. 8. A liquid crystal display element comprising a liquid crystal composition set forth in claim
 5. 9. A liquid crystal display element comprising a liquid crystal composition set forth in claim
 2. 